AITA for telling my sister and her family not to bring their kids into my home again for refusing to follow basic rules I set out?

My husband and I do not have any children and do not plan on having any, so we set some rules for visitors to keep our home the way we like it and to protect the things we own. One of these rules is that we do not allow any kids in the home. We have a small place and are not set up for kids at all. My parents, sister, and her family were all understanding of this rule and never brought their kids in group to us.<br><br>Recently my sister had a fight with her husband and left with our chore list still undone. I was very irritated as it felt like she came over to visit, left her mess, and expected me to clean up before I could put my own life together for the day. I made it clear that from now on, I expect people, especially guests of guests to follow the rules.<br><br>My sister was extremely upset when she asked if we could compromise and let the kids over once in a while. I said no because it is too chaotic and I don't want my stuff damaged, so I told them to make other arrangements for childcare in the future.<br><br>My sister and her family have gone back to asking a neighbor, but I was extremely upset to see them leaving their two kids (ages 3 and 1) at our home for hours a couple of times a week. My husband came home from work one day and the youngest was screaming nonstop and the older was throwing blocks all over the place. The kids also eat paint and have eaten things they shouldn't have, and I ended up having to throw out a bunch of my husband's collectibles because the kids were too young to understand commands. The last straw was the day my husband came home to find the toilet covered in poop because the kid who was supposed to be watching pulled him away to play cars with him. I told my sister she needs to stop bringing them to our home, and while my sister is willing to watch them here, we have schedules we need to follow and cannot have them here as we need to leave for work soon after arriving home.<br><br>They are accusing us of abandoning family and being unsupportive, but I really do not want to compromise at all. AITA?