That's me! I'm in that creed.
People associating their identity with their politics is when trouble starts. That's when it becomes really threatening for them to even consider alternate perspectives, because if they change their mind, they will change who they are and who they can be friends with.
It's possible to separate the two, whereby an idea on how society should be organized is just that: an idea, to be considered, adopted, discussed, and abandoned as new information becomes available.
One really poisonous idea I see circulating is "either you are for <some thing> or you are a <bad person>" Either you support riots or you are a fascist Either you punch Nazis or you are one Related, just as terrible, "Time for discussion is over. If you're on the fence at this point, you are <bad person>" These kinds of memes increase polarization, and stop discussion. A person who says something like that can no longer have a calm exchange of ideas with their grandma