The Government of the United States of American is not a parliamentary system, where a party with a majority can do pretty much whatever the prime minister wants.

Instead, the US government is designed to distribute power, with each house of congress, the President, and the Courts, each having significant power to block change. This is an example of that — actually getting the kind of change we need is going to mean sustained Democratic supermajorities for multiple election cycles.

the alternative is a bit worse

Because he's not a "bit" worse.

just go and vote for the lesser evil if you will.

Sane people will , yes.