It’ll make them better adjusted. Playing music specifically for children shelters them and is going to make them alienated from their average peer.
You just also have to teach them that in school (and later professional/work contexts) they keep their words clean for the puritans that walk amongst them.
The boycotts themselves aren’t illegal. Its primarily that the government has made sustaining a boycott against Israel harder by pressuring non-profit organizations that could potentially aid or support a boycott by threatening their federal funding.
Its still absurd and disgusting. It might also still be unconstitutional and at the very least is clearly against the spirit of the 1st amendment.