You don't and you can't. All you can do is provide facts, no shame, and a position.
2016-2020 was not normal, and people need to let people talk, vent, scream, and even walk away from 2020-2024.
If a person was all about shaming and prejudging another person based upon a political label, they have no right or position to tell another that they have to unite.
There will be a backlash, the question will be will the new folks in power act like the previous.
Toxic Individualism is not something that will go away in 1 day, 1 week, or 1 month. It will take multiple years to unwind.
To do so requires time, therapy, and peace and a safe space for people to process.
The phrase to remember is tone policing.