Call the police.Call the police? You don't have enough proof, and shouting death threats at people isn't "harassment" anyway, it's just "free speech", so just grow a thicker skin already, and stop encouraging the death threats to be sent to you by being out in public like that!
You have a right not to be killed and you have a right to wash your clothes but you don't have a right to wash your clothes in that specific laundromat at that specific time.
Nice how you seem to have started to realize your logical conclusion was "but you don't have a right to wash your clothes without the threat of being killed", but tried to avoid it.
I know you are going to hate this, but why is it the first person to bring up race is usually someone saying that something is offensive or privilege?
A while back I criticized the "politics" "detox" on HN by saying that there are a lot of people who don't have the luxury of just saying "I'm tired of all this, I'll take a week off from it". They don't have that luxury because they're going to be bombarded with hate, and probably harassment and threats, no matter what they do.
Meanwhile there are a lot of other people who can simply take a week off: they don't face that constant bombardment, nobody will try to follow them around and keep forcibly exposing them to it, etc. This is what's meant by "privilege"; the people who can treat this as just something tiresome which can be safely ignored for a week are fundamentally living in a different world than the people who will be followed and threatened by it no matter what (because, let's face it, there are dedicated ragemobs out there which don't care if somebody stops reading one site, or going to one laundromat -- they'll track down phone numbers and home addresses and keep coming).
Getting the people who "take a week off" to understand that this is something unique to them as a class, something that others can't just do whenever they want, something that really is a luxury compared to the way others are forced by our society to live, is often very difficult, because when you live in that protected bubble you often are completely unaware of its existence. You don't face that kind of treatment, after all, and you think of yourself as average, so on average that kind of thing must be very rare or perhaps greatly exaggerated. Dragging people out of that bubble and making them confront the fact that no, it's not rare and no, it's not exaggerated (if anything, it's often understated), and yes, there are very clear patterns, based heavily in race and gender, which consistently appear to determine who gets the luxury of the bubble and who doesn't, is very hard, but necessary.