AITA? Or is husband reaching?

Because apparently my husband thinks not and has literally been mad at me for 2 days, being given the silent treatment, after an argument he started with me about our child “not needing to know politics”.

Obviously a 5yo has no business knowing the deep 💩 about politics. However, I homeschool my son and was teaching him about the president and what their job is (at an age appropriate level) and during election week we talked about what voting meant, who the candidates were, what happens when one wins. Literally just the bare minimum. I didn’t say Trump is good or bad, or if Kamala is good or bad, as he wouldn’t be able to understand why and I’m not going to tell him that the person running our country is bad and possibly cause unnecessary fear or worry in him.

Anyways, my son is proud to know this information and likes to talk about it. He wanted to know who won the election the next morning and I told him Trump did. He was excited (and would have been if Kamala won too) and occasionally brings it up. My husband (who also doesn’t give a flying f about politics, said on election week he doesn’t care to vote and doesn’t care who wins) says it’s inappropriate because he’s only 5yo and has no reason to know anything about politics, and literally argued with me about it for hours. I asked him why he was so worried about it if he doesn’t even care about politics in the first place, but the truth is that all of his friends are liberal and he’s terrified our child will mention Trump around them and embarrass him. It was such a huge argument and I finally just said ok and ended up telling our son that we can’t talk about it around other people anymore and he said “why? I want to tell people how smart I am because it’s cool” 😕

AITA for teaching my son about that? I genuinely can’t grasp his thought process and WHY we are going on a THIRD day of him giving me the silent treatment simply for disagreeing that there’s nothing wrong with our son knowing that little information.