Don't want to out myself so sorry for vagueness but here goes -
My group of friends all have kids from newborn up to around 15. We all get on really well and socialise regularly, whether at each other's homes or out and about. There's quite a few of us so there's usually always a birthday / party / outing planned in the near future.
Only downside is there is one couple who bring their kids who are just really naughty. I don't just mean playing up for the crowd or being a little rowdy. I mean throwing and breaking toys on purpose, shouting and swearing at other kids (and adults), pushing the smaller kids away and taking toys off them so they can play. They have absolutely no respect for the person who's home they are in, trash bathrooms and squirt shampoos up the walls etc, caught purposely squashing food into carpets, tempting the little ones away with the promise of sweets and cake and then locking them in the lounge so they can have free reign of the garden. I could go on but I'm sure you all get the idea. The kids are in my eyes old enough to know a lot better.
I need to also point out that there is absolutely no punishment or telling off from their parents. In my house I will happily tell them off and make sure they understand that I do no tolerate that behaviour in my home, however this means that at the last party they came to (my DD's) I spent more time babysitting them than enjoying my daughters party. Ended up giving in and taking my little one inside away from them all.
So! Question is, AIBU to not invite them next time? And how do I go about doing so? As it's virtually impossible to not let them find out. The parents in question are actually really nice and down to earth but so fucking ignorant (or lazy) to how their kids behave. I feel like it is not my place to question anyone's parenting but my own so struggling to find words to have with them. Don't want to break a really good group of friends up by having petty arguments over kids but it's getting to the point where they are ruining things for people. Help!