If the politicians keep voting for things their constituents don't (and in these cases actively push back against so hard that the politician are forced to withdraw the push) that seems like strong evidence that politicians are doing something with an external incentive...
Politicians having bad incentives (e.g. campaign donations) isn't conspiracy thinking, it's a documented reality. Hell, we even had a supreme court judge taking a present from somebody who's case he was ACTIVELY OVERSEEING.