Judged for Vaccinating/Setting Boundaries

I’m 19 weeks pregnant and planning ahead for my husband and I’s boundaries for when I give birth and then after we come home with baby. My husband comes from a big polygamist Mormon family that he’s mostly estranged from. We see his bio mom and the family sometimes but we’re very different people and don’t see them often. A big rule we’re setting in place is that no one unvaccinated is allowed around the baby, specifically MMR and TDAP (and we’re asking everyone to ensure their TDAP is current or get a booster). To me this is all extremely common sense, I am not risking the life of my child by having someone unvaccinated around. A lot of my husband’s family is anti-vax and this is already causing issues. They all think I’m overreacting and being paranoid and should just let them see the baby. But I’m going to uphold my boundary. I just wanted to vent and hopefully get reassurance that I am not overreacting… It’s 2025 and I will not risk the life of my newborn because adults are afraid of a few shots that have been tried and true for decades now. Am I being too harsh?