I'm not sure how long you have been riding for but I'd guess not too long or you have a very selective memory.. I've been riding for 35 years or so and there have always been riders speeding/stunting. You name it and it has been done, is being done and will be done. There has not been any game over up to now. Can it happen in the future? Sure, but not likely. It really is not all doom and gloom.
Btw, comparing speeding motorcycles to gang wars and bombing is pretty much out there even for one of the GTAM safety clique ...
I must be sheltered then. Been on the road for 40+ years, and only seen one wheelie. It was on the way to Dover, a few years back. Most riders believe in sharing the road, and maintaining control. There were a lot more vehicles, cars mostly, going 100 miles per hour back in the day, but that has declined substantially.