Democracy ended in the US the moment voters felt it necessary to unconditionally support the man aiding a genocide because the only alternative on the ballot is someone even worse.

The Democratic Party will never become introspective and seek to improve in any meaningful way because they know they already have your vote for the above reason. Not only that, but they create the conditions for it by donating to far-right politicians with the purpose of ensuring victories in elections.

If the Democratic party was given reason to think they'd lose support from their voter base, they would actually be compelled to start implementing popular policies. This is something you people could be doing instead of shaming people for not being okay with the backing of a literal genocide.

Nothing is going to improve unless you leverage the power of bargaining. As it stands now you're only slightly delaying America's further descent into Fascism and barely protecting what little you have left, which won't even last as the Overton window keeps moving to the right with each election because of what the Democrats are doing.