That’s horrible to hear.. I know people can be pretty “undesirable” (for lack of better words) but that’s not ok. I’d be surprised if that wasn’t illegal. I sincerely hope you and everyone you care for is healthy and safe, especially in times like this.
Some of these definitely veer into questionable legality land, but if you've got laws the police just aren't interested in enforcing there's not much you can do. I did go to my local police station once when there was a credible swatting threat and explained it all to them and predictably the answer was "just stay off the internet".