It's official - We've parted ways over politics

[SergeStorms]

55. Sorry to hear that, KentuckyWoman.

I think we've all lost someone - a family member, a friend - to this toxic political climate we've been exposed to. It didn't just happen when Trump came on the scene, it's been evolving for decades. Trump is just the figurehead of this malicious, injurious, dangerous ship of state.
I don't know how it's all going to end. What I do know, speaking from personal experience, is to NEVER talk about politics with family or friends unless you're positive they're of a similar political bent as yourself. My brother is much the same as your brother, my mother - 90 years old, and to a lesser degree than my brother - are died in the wool Republicans. They don't know why, or they're not telling (I think it's racism and xenophobia), but they're not going to change.
Don't try to change your brother. He is who he is, and you're not going to change him. Maybe your husband could smooth things over enough so you can at least be civil to each other, with the stipulation that you never discuss politics again. That's the only way this could ever work.
The final decision is up to you and your brother. Is family thicker than politics? It is in my family, but only because I told them we would never discuss politics with each other again. If the subject comes up, walk out. I don't mean away, I mean out! Leave the premises, and their "company".
I wish you the best, and don't take anything your brother says personally. He's obviously under stresses or circumstances you never before experienced with him. That's his problem, and not a reflection on you or the rest of your family. You be you, a wonderful, kind, loving person who knows the correct road to take.