Am I wrong to want to break up

I found out that my boyfriend watches people like Ben Shapiro and Andrew Tate and other misogynistic men and also misogynistic women. He also defended old men grooming young women like 50 year olds dating 20 year olds saying “at least it’s not rape or sexual assault” and honestly I’m just getting the ick so bad. we’ve been together 4 years and I’ve never heard him say anything like this, he admitted to all this when he was drunk so it’s probably not something he wanted me to know because he knows I heavily disagree with all that stuff. I’m scared to break up with him but I don’t think I can get over this.

Edit- I’m just scared to lose him because he’s been my absolute best friend for 4 years and i don’t have many other friends, it’s just hard to find out so quick and out of the blue who he really is. But I fundamentally disagree with everything he apparently listens to and believes in so I know I can’t look past it

Edit- this all came out last night and I’ve been thinking about what to say all day so trust me that I haven’t invested any more time :/