When their bikes comply with noise regulations, I’ll consider some sympathy for granting them added privileges.
My 25 year old, 16 valve V-4 shaft drive Honda motorcycle is probably as quiet as any car you drive (and much quicker & nimbler too) but I don't want your sympathy.
When are you going to start wearing a helmet? You car drivers with your head injuries, are causing my insurance rates to be higher than they should!
If you don't ride, or never have, maybe your opinions on the subject ain't worth squat? Since you really don't know [squat].