Basically, is somewhat right. As a homeowner, one really has to ask to what extent one's own demands and desires are compatible with sustainable living on this planet. Many people actually only think as far as their own nose, after me the deluge. One always has to ask: What happens to our planet if everyone does the same as I do? I think anyone who ignores ecological aspects when building today is acting irresponsibly toward future generations and must accept criticism. However, critics should perhaps not always be so pushy like . That only divides and drives the unwilling even more into their unecological corner. Persuasion is more appropriate here. Both sides should perhaps orient themselves more towards Kant's categorical imperative...
Regarding land sealing, we have a dilemma when it comes to ecological impact, as I already explained yesterday: there is soil preservation/landscape protection vs. climate protection. More building land in the right places also means shorter distances, the possibility to leave the car standing sometimes or to get rid of the second car. In addition, the possibility to produce and use environmentally friendly energy yourself and to provide a habitat for all kinds of species in your garden. But that also requires dealing with ecological issues and not dismissing them as envy, dogma, or something else.