I think most folks are actually in the middle and generally agree. Anyone who thinks one of the us political parties is completely innocent is lying, either to you or themselves.
That being said, I think it's worth noticing if one party does more bad things than the other and I also think speaking up with your values is worth it and maybe even a duty we owe the people who built this country before us.
Either way, your first responsibility is your own mental health so you have full support from this internet stranger.