Yes, I agree with you: inaccurate generalizations don't help anyone, and insults even less so - quite the contrary. That's exactly the kind of mindless nonsense that has helped demagogues like Drump succeed. It only serves to distract attention from the real culprits.
The only thing I wanted to say with my comment is that I can halfway understand why people are frustrated and allow themselves to be led to make such bogus statements. I think you're absolutely right that it makes much more sense to look forward rather than backward, to put an end to political infighting and to join forces to fight the real enemies, because they are essentially the ones who benefit from discord - it's their strategy.
The GOP's approach is a good example of this: since the Tea Party movement under Sarah Palin and then MAGA, this party has developed into an anti-democratic juggernaut: instead of discussion and compromise, it now insists solely on its inhumane hardliner positions, slander, disinformation, etc. - not talking to each other rationally, but merely spreading hatred and hostility.
Unfortunately, this model has also been adopted by right-wing extremist parties in my home country, and they too are unfortunately very successful with it.
Democracy simply cannot function this way, because it requires the exchange of rational arguments and a willingness to cooperate for the benefit of all. With hatred and slander, on the other hand, it is impossible to shape democratic processes for the good of all.
Therefore, baseless accusations and insults are extremely counterproductive.