My history teacher is extremely biased and idk what to do

I’m a junior taking a college in the high school class. Essentially, you use a college textbook and get college credit but it’s taught by a teacher at the high school. Currently I’m taking US History. My teacher loves to make connections to today’s world from history. Now this by itself may not be much of an issue, though I maintain he shouldn’t be making these connections for us, but the issue comes when he presents an extremely biased-and sometimes factually incorrect-world view as the correct and centrist view. When he makes connections, he criticizes one certain side of the political spectrum 99% of the time. I won’t say which, because I want honest advice that isn’t based on what side he’s on, but rather just based on the facts of what he’s doing, because it’s an issue either way. He’s presenting an always biased, and sometimes just not correct, view of an already confusing political world to people who expect him to be a beacon of truth. He’s affirming kids who don’t need an authority figure, especially a teacher, to do that. I don’t think it’s right to be coaching kids on what the correct lesson to get out of history are, especially when you clearly have such large biases. I’m not sure if he’s just not self aware enough to tell he has biases, or if he truly thinks he’s not, but that doesn’t change what he’s doing either way. He’s stated that he thinks it’s his job as a history teacher to draw conclusions for us. He’s the only history teacher I’ve seen say this. I find this problematic.
I’ve thought a lot about what I could or should do about this, and I’ve come down to two options. I either do nothing, or I try and talk to administrators about it. I have all the most concerning statements written down, including the time he used his real middle finger towards the class when imitating a certain politician. But I’m afraid administrators would be on his side, as well as other faculty if they knew. I worry about picking a fight I can’t win and that isn’t worth it. I worry about ruining relationships with teachers and peers I know have the same views as him if I pursue real action. Also, I am taking a class next year with the mentioned teacher, since he’s the only one who offers college courses in the high school for the credits I want. I don’t want to cause a big fuss, but I also feel like it is actually a big deal.