I highly doubt the left will do anything uncivil.

Firstly, undestanding what left actually is would be a good start. You’re not talking about the left. You’re talking about liberals. Liberalism isn’t left. Liberalism is right-wing, and always have been.

The actual left is very happy to be “uncivil.”

Secondly, a good second step would be to finally accept that liberals, and liberalism in general, has never, and will never, oppose fascism.

Those are two very basic things you can do right now.