Am I overreacting? Found my FIL and BIL waiting for us at home this afternoon uninvited. To be fair, my husband missed their calls but not sure if they asked to come over or called to say they were already in their way

. So my issue is that we have young kids - age 3 and 5 - and while I'm happy for them to spend time with family - my in laws are completely clueless about being with kids and my kids just go nuts. They don't eat well, etc. I have nothing against my in laws except to feel that my BIL while a nice guy, is so weird that I really would not put him up as any role model for my kids although he's nice enough and plays with them he would not be ok to watch them. He's mid 40s with exactly 0 friends and when i say 0 I mean none. He spends his time being alive, working at his dad's business M-F and doing a Sunday AM club. He is with my FIL almost 3-4x of the week and most weekends other than that. He's a virgin we think and not gay so no secrets or anything

just weird in that he is smart but doesn't do anything. Totally unhealthy and weird being almost like a partner for FIL. fIL actually cool with hella lot of friends but is widower of 7-8 years now. Them interacting with my kids is so weird they just watch us and don't engage it's so uncomfortable and even my husband is aware of this but he loves his family and is all about being with them at least every other if nog every weekend. My family is dysfunctional and I'm an only child but my parents are out of state anyway.
That aside, I can't see my parents ever sitting in my house without confirmation of me saying come over. To me it's not appropriate and disrespectful given that we have little ones as well. Am I projecting my feelings for them on this situation or do I have a point about boundaries even when considering family gatherings??