They complain about there being sharp stuff over there, then they put on tires that are made of kleenex which can't handle any sharp stuff. If I put tires like that on my car, I wouldn't be able to use the roads at all. Stop crying, get some real tires, and get the fuck over. We have to deal with all the same shit on the roads. We got better rubber.
Again, we (cyclists) must be responsible users of the public space. Those tires you mention are for competition, for speed bike, or if at all, for touring long-hauls — but not for city trips. For the city, we need good rubber tires, with enough texture to be able to stop effectively, and able to withstand minor puncturing objects. And if we don't, well, our bike is not fit for urban use.
I'd laugh at people using Monster Trucks to go to work (unless,of course, they work at a Monster Truck show :-P ), or people using Scandinavian winter tires in my (tropical) country. They are just not fit for it.
Cars and bicycles sharing the same space is madness. It makes no goddamned sense. Let's build cycle paths so that cyclists can have a place to ride.
They can share the space if they do so responsibly. Most city roads are not meant for high-speed driving. Most city roads will by themselves impose a ~40Km/h effective limit on cars — And bikes are not that much of a hassle then. Of course, motorways are off limits for cyclists.
But let's also expect cyclists to behave themselves when they're on the road. That's not how they behave in California. Most of them behave like total fuckheads
And yes, here we agree again. We can only coexist when both motorists and cyclists abide by the basic rules.