Qualified Immunity could be easily fixed by law. That congress has been unwilling to pass such a law tells you that both sides support.
Conservatives scream about california because it's a useful red herring. California's stupidity is not limited to democrats, but conservatives really like to push that california is bad BECAUSE of democrats, the classic correlation causation thing.
Democrats often try to play the same dumb game with Texas, and that should be similarly rejected.
Also, only one party activists are trying to overturn it. Other part supports it. It is wrong to blame both sides.