Singer typing brings up pictures of some infantile lunatic. Really not worth reading...
My understanding is delta variant is considerably more transmissable. This may be due to a higher viral load created in the body. They don't really know yet but what I've heard from other countries is that this is going to be considerably worse for the unvaccinated.
Regarding Singer -
No reasonable person hasn't said that many people are asymptomatic. To say "oh look I haven't been sick" is just an imbecilic view of things. All it means is you have been lucky.