Assuming you haven't lived in the US I think you're severely underestimating some of the stupidity going on.
So let's say your house has a thatched roof in California where it's bone dry and hot. At that point, the person lighting the fireworks will still say it's none of your business. Even if it's illegal and every year houses burn down as a result.
I don't think you get how much of an 'I don't care about anyone else, because FREEDOM... Murica' mindset exists unless you've lived there