You need to listen to what MAGA and rightwingers say when they are critical of the establishment. You don’t have to agree with them and you shouldn’t, but you should try to understand why they make the decisions they make and come to the conclusions that they do.
The MAGA movement was able to fuckold the Republican establishment into doing the will of their voters. It just happens that the will of their voters is vile and wrong, and basically orchestrated through the distribution of rightwing media. It went from outside radicals to business as usual in the Republican party in one election cycle.
Trump pushed for every single one of his campaign tent poles. He didn’t get them all, but he pushed damned hard for almost all of them, and got or made progress on many of them. You should hate him. You should hate those policy positioned he pursued. But he did his voters right in that they voted for a person who would go after those policy positions, and he went after those policy position. These anti-human policies are what right wing voters want.
Here are is a video interviewing rightwingers. Pay attention to how they frame things, how they are structuring their arguments:
And what you are describing, Republicans in the business of dangling carrots; that was the republican party for decades. Its also been the business of Democrats for decades. The difference is that the MAGA movement was able to force the Republicans into action on their polices. The progressive movement has been unable to do so with Democrats.