Why don't construction prices go down?

And now please don't come again with a wealth tax. You can probably get a little from that, yes. But if we can't get people to work and create value... Eventually, the money of the rich will run out too. And then...

It's not about a wealth tax. It's about the super-rich paying exactly the taxes that every other citizen pays. Tax evasion and avoidance is a crime or a betrayal of one's own people. Why do you marginalize that so much?

Suitable for the topic of how the super-rich avoid taxes

Take a look at the KTM construct and those Stefan Pierer and the current insolvency.

A small office can no longer keep track of that.

Tax evasion and avoidance

Tax avoidance also exists completely legally and Germany is actually a world champion in exactly that. What the – quite likeable – gentleman reported on Hart aber Fair was 100% legal. And he went on the show himself because he thought it was completely crazy. Why is something like that still so sustainable?
Well, look at the course of the thread here: questions that challenge a position are not answered; instead, the typical learned buzzwords are thrown out, which culminates in this:

And now please don’t come again with wealth tax. You can probably get a little out of that, yes.
But if we don’t get people to work and create value... Eventually the rich people’s money will run out too. And then...

Almost every misconception about taxes in two sentences. Our money doesn’t run out either, even though we are taxed higher our whole lives while owning and earning less at the same time. I’ll spare myself the question of why that might be; questions aren’t answered anyway.
But I have to admit this position is in good and also quite large company.

Yes, it is inherent to political discussion that everyone thinks they know better and believes the other has no clue.

Your ideas might work if you build a wall around Germany. Then you can crank up the tax rates properly; no one can get out anymore anyway.

In reality, we are in international competition with countries that simply do not have such taxes and are therefore significantly more attractive for capital and investments than we are. You might not like that, but stamping your foot and shouting "No, no, no" doesn’t help my 2-year-old daughter at all, and even less so for us as Germany.

We are currently experiencing companies relocating their sites because production here is too expensive. The answer to that should be a higher minimum wage and the taxation of wealth? And lifelong support for people who could work but do not want to? What exactly must one be lacking not to be able to work at the age of 25? Really absolutely nothing?
Tell me one thing:
Do you think Mr. Grupp’s wealth, which you want to tax, just sits in his account? Most of it is tied up in the company, even if only as collateral for liabilities.

Competition is, contrary to the leftist worldview, by the way, not a bad thing. Humanity is where it is today only because we are in constant competition, and only those who advance—or in the past only those who survived—were more talented, smarter, stronger, or more innovative than others. Or simply those who worked harder than the rest.

This will probably now be cast into the unequal opportunities that we have in the country. And that is true. The starting basis for a rich child is much better than for a poor one. But—and this is important—if the poor child puts their hands in their lap and says “I am poor, it won’t work anyway, I have no chance...”

... then they won’t have a chance either.
Unfortunately, my grandfather is no longer alive; he was expelled from his homeland in 1945 and arrived in Lower Saxony with what he had on him, and then began to work hard to build something up. If he were to read this here... he probably would have no words left...

But now it’s really over, my time working from home is coming to an end, next week the hard work begins again. You should try it too.

Oh, I see. Anyone who needs examples for support just has to look at our society. We have almost everything, many no longer really know what to give each other for Christmas... everything is basically already there. And such societies, lacking competition, that no longer want to achieve anything. They become sluggish and eventually get overtaken by those who don’t have everything yet but would like to have it... Now it’s really over, I wish you a good Christmas season.

We are currently experiencing companies relocating sites because production here is too expensive.

Labor costs in China, Bangladesh, Vietnam, India, practically in all BRICS countries have always been much lower than here. They were 40 years ago, they are today. We could cut our costs by two thirds at this point and would still be much more expensive. So what exactly is the plan here?
In truth, all companies that want to combine their good productivity with cheap wages elsewhere have long since gone away. The reason to invest in Germany is not costs, but planning security, legal certainty, infrastructure advantages (which we are currently cutting away), well-trained staff for more demanding jobs (you cannot outsource brainpower at will).
I always ask myself how Switzerland, a country with even much higher labor costs, can be so competitive? Rhetorical question…

Competition is, contrary to the leftist worldview, not a bad thing.

Competition between companies, yes. Between states? No! There competition is simply nonsense. Because you cannot drive states off the market. The people stay there.
At least we have now understood this much in the world, that wars are decreasing, even if that doesn’t seem so currently in the EU.
So yes, there is bad competition—objectively. Because if the result is war and poverty, I call that objectively bad.

You may not like it, but stamping your foot and shouting "No, no, no",

I don’t do that at all. I ask questions and bring arguments, so claim -> reason -> evidence.

You do not address exactly those, but talk about something else. There are surely reasons for that.