Rude neighbours are the worst. If you try to reason with people like this it usually backfires and they take it as a challenge to be even more obnoxious. Is it possible for you to take the children to a park instead?

I had this type of neighbour in the past since I live in an apartment and I never said anything to them because they were truly unbalanced. Then I had a guy across the hall from me that smoked so badly with a lot of other people that I went through proper channels and finally ended up calling the police and the Health Unit who enforced no smoking in the hallway, so he called CAS on me, peed in my garden and who knows what else that I didn't notice!

Here we are working really hard to make a living and it's disgusting and disruptive to have this kind of neighbour around. I feel your pain. But I hope I've helped you think about how to proceed. Luck to you. By the way, my bad neighbours are all gone and I'm still here working hard!