Tim Walz calling Republicans weird was proof that’s not true. The base LOVED it. I’d argue disbanding civility politics is exactly what Democrats need to do. How can you win with understanding when you’re being fought with violence and propaganda? Just call them disgusting monsters and then stand your ground.
I would not advise threatening your opponents lives, but certainly calling them what they are and threatening them with jail time for their out and about treason is warranted in this environment. People rightfully have internalized the reality that powerful people are above the law and liberals especially yearn for exceptions to that as just more evidence that people on the left are ripe for a tone change.
To the point of actually getting things done after, I believe it’s possible to walk and chew bubblegum at the same time. Rhetoric and policy should be connected in a serious government leadership.