I think you are being a bit overly negative but you do have a point. Where I live (northern Europe) I could never get by with any kind of "open" vehicle (i need a roof and heating) and snow tyres.
I remember biking home from school during the winter when it was snowing heavily. The sidewalks were completely snowed in with heavy snow so the bike just really went where it wanted to go and very slowly. I eventually decided to move over to the road but I was soon tailgated by a bus. Since the bus was honking at me, I had to pull over to the next bus stop to get him out of my ass. I think it was about at that moment that I decided to ditch winter biking once I could own a car.
Single lane roads with no shoulder can be very dangerous in the winter. Fortunately where I am in Canada, there's adequate space for cars to pass on the roads I take.
> bicycles are still quite horrible in the winter. I find the opposite. The activity itself is fine, but the winter is quite horrible on bicycles. Salt and slush can really make a mess of the mechanisms.
I’m not saying it’s possible for everyone. I would probably not do it if my commute was longer than 20 km one way. But many more people can define do it for the benefit of their health and the environment.
Hell, Oulu has high biking rates and is one of the northernmost cities on the planet.