is it bad

I have 2 children, but don't like dating people with children. I currently am and his child honestly drives me insane. He is messy and gross and just too much for me. My boyfriend just doesn't do anything to correct his behavior. I'm thinking about leaving because of this. his kid is not nice to my children and is older and I don't feel like this relationship is worth all of this hassle. I feel I'd be better suited with someone that has no kids, or at least has well behaved kids that are polite.