I can see why you may feel offended, but I don't think the parent post deserves your anger.
I'll bite.
When I was 16, I REALLY wanted to own a motorcycle. I thought they were the coolest.
Luckily, I was pretty poor - so I wouldn't have money for any such thing until I moved from my small town to get a job in Boston. There, I made friends with someone whose father owned a business that put people back together after motorcycle accidents. In just a couple of minutes, he convinced me of how unsafe they actually are. Despite the fact that I think motorcycles are cool as shit - it's hard to argue they are "less safe" than cigarettes for 18 year-olds (or for anyone).
Also, now that I'm older, I definitely wouldn't mind if they were banned on residential streets. At least the ones that are noisy as hell.
So - it's a mix of:
1) It wouldn't be out of line for the Government.
2) It honestly seems in-line for the Government (even if I don't really agree it's what the Government should be doing).
3) It wouldn't affect me personally.
4) Personally, it would actually be a plus since I'm older now and I can't stand the noise.
So as I said - I'm not going to vote to ban motorcycles - and I can't imagine it ever happening - but if it did - you won't see me out in the streets protesting.
However regarding your points in turn:
1 & 2. I don't think nannying is what the government should be doing. I agree that seems to be the modern character of government though, at least where I live.
3. Obviously would affect me. :-P
4. I can't stand the noise either. I haven't modified my bike exhaust.
Most affected I think though would be the "uberEats-alike" delivery services as they seem largely run on the back of scooters, although ebikes are becoming popular too, though no less risky really.
Aside: if you still think motorcycles are cool, review what aspect of your risk profile precludes them. Maybe ride offroad, where traffic is much less a thing. If tarmac speed is the cool factor, you could go to a track. Modern MotoGP riders do both so you'd be in good company!
Just don't try to emulate their speed capability! (By the time you are good enough to ignore this advice, you will know it...)
Stating a lack of opposition to the removal of those isn't just "not caring" is actively taking a stance that you believe those rights have no value. I think requesting justification for that stance is reasonable and not an expression of "anger".