Monster MIL

So my husbands name is Michael and we want to name our son Michael Anthony (Anthony is my dads name) and my mil has been giving us such a hard time saying that there are too many Michaels and we shouldn’t name him that and that if we give him Anthony as a middle name my husbands father will be upset about it. She is so controlling over so many things but this I’m just beyond infuriated about and don’t know what to do. 😩😩😩😩