I suspect Democrats (and many Republicans), will continue to attempt to demonize and punish Trump, for interfering and placing at risk their opportunities for personal gain from influence bribes and money syphoning they have come to rely on. From the start, Trump has been feared and has since showed many within the political community to be reptiles.
Demonization will also set an obvious example of what will happen to anyone else similar to Trump that may have been considering running for President.
In addition, perhaps they think they can cause Trump to feel there will be little potential for reelection in 2024 so he won't bother trying. Not only would that demoralize his established support base, but will also provide opportunity for fellow Republicans that are planning to run for President in 2024 that would not otherwise run if he is the Republican candidate.
Those that think Trump will throw-in-the-towel, haven't been paying attention. When he meets opposition, he has proven he will double down and will be further energized to push-back, go around or climb over whatever is in his way.