She’s always inviting them over without my consent even though they are maga, anti-vax, bible thumping morons, and knows I hate them.
We fought over it the last time and I relented because she cried and said she didn’t want to kick them out of her life (like I would do to any maga). I agreed they could continue to visit since we live about 7 hours away and we don’t see them that often.
But now we have our first newborn baby not even 4 months old and I worry about its health. We’re in the middle of flu season and her sister’s anti-vax family is driving over with 3 high school age kids. She did tell me they wanted to come months ago and I said no (due to aforementioned reasons). I hadn’t heard anything since, until today when she said they were coming this weekend and she “forgot”.
Obviously I’m pissed. AITAH?

Forget about flu. Do they have Whooping Cough and Measles vaccines? If not, I’d take the baby and get a hotel until they leave.
I don’t know about what they have or haven’t vaccinated, just that they don’t trust vaccines. But I wouldn’t trust them enough to bother asking anyway. The in-laws already visited and after spending a few hours with us told us they were sick.
These are the type of people who believe if it happens, god meant it to happen so it’s not their fault/no reason to be concerned.