You seem to be suggesting that the American public are fools who were tricked, rather than the Democratic party being genuinely unpopular.
The Democrats were in power for 4 years and accomplished almost nothing while the lives of ordinary people got worse. They never forgave student loads, they didn't legalize weed, the 2k stimulus check was cut to 1.4k, they never raised the minimum wage, they never rolled back abortion bans, they continued putting kids in cages, they backed a genocide, and inflation was worse than it's been in a long time. And this campaign their whole message was "what are you going to do, vote trump?".
The republicans didn't gain any votes this election, the democrats just lost millions.
Don't be ridiculous