How do you cope with family members that are MAGA

My dad has been becoming more and more conservative over the years and now definitely has MAGA traits. I’m so confused because my dad is an incredibly smart man he is an anatomy professor with a PHD in the evolution of the brain. I’ve always been incredibly proud of how smart my dad is. But with some of the things he’s believing I’m genuinely worried, a few examples are he believed they where putting litter boxes in schools for students that identify as cats, he no longer believes in climate change, he believes they are doing post birth abortions just because the mothers don’t want the baby, he believes gays are trying to indoctrinate kids (that one really hurt because I’m out as bisexual), he believes Covid was a hoax, the last straw for me is his mental breakdown over the Kirk a assassination he was screaming and saying the left is a violent terrorist group. I even looked up rate my professor and students are saying he is going into these rants during his lectures. He is regularly watching Fox News and Alex jones. I just am so confused watching someone that I believed was so smart and taught me growing up to accept everyone because on the inside we are all the same.How are you guys dealing with family that is now MAGA?