Greg - if those cyclists you condemn exist to the extent you suggest,
then other cyclists like me would probably agree they are complete arseholes,
an embarrassment, a liability to all sensible / reasonable cyclists
who just want to get home after every ride, safe, unhurt, and alive......

Likewise, I'd suggest all motorists aren't necessarily sociopathic potential killers with a vendetta against all other 'inferior' road users...

Hey, I've even seen local horse riders on black horses, dressed in very dark hooded clothes at dusk with no hi viz, reflectors, or torches
on nearby country roads......