Construction costs are currently skyrocketing

define city. That certainly includes the small small town with less than 10,000 inhabitants. These small towns have more rural problems.

If the number "In 2021, around 77.5 percent of the total population of Germany lived in cities."*, thus the number of voters over 18, is correct, it becomes relatively clear why politicians first have to take care of the needs of city dwellers.
*Source: Statista

But that is potentially also dangerous...
The city dwellers at most demonstrate with their fat-free almond milk latte, while we here in the countryside still have torches and pitchforks that we can bring... :D

But basically I suspect it like

@Pinkiponk define city

In Germany, a settlement with 2000 inhabitants is already considered a city. (City rights are to be distinguished from this.) Many services are simply not worthwhile for 2000 inhabitants. Even my hometown with about 50,000 inhabitants feels more like a village than a city because everything spreads out so widely.

It's just a question of what is defined as a "city." I quickly looked up the distribution by municipality size. Note: a municipality consists of several places that are each smaller, conversely, a metropolitan region can consist of several municipalities. The picture is certainly distorted in both directions. But it should be clear that the majority does not live in large cities but rather in smaller and medium-sized municipalities. Each size has its own conditions. Here in Konstanz (85k inhabitants) I can easily reach everything by bike in 15-20 minutes. In a significantly larger city, that might no longer be possible; there a subway is already practical.

define city. Surely that also includes the small small town with less than 10,000 inhabitants. These small towns have more rural problems.

As mentioned, I used the information from Statista and did not read in detail how city is defined there. However, there is an official statistic and I suspect that Statista uses that as a basis. Municipalities from 2,000 inhabitants have city rights.

Even if I only glance at the statistics, I see that Statista cannot define a "city" as having >2,000 inhabitants. >5,000 is more likely. But honestly, I find it hard to imagine a "village" with 2,000 inhabitants and even more so with 5,000. "Dorf" is defined for me as a romantic "everyone knows everyone." That is hardly possible even with 500 people.