Sheesh!
I never said cars and truck shouldn't pay their fair share, or that bicycles had a measurable share by comparison, or that a $2 fee was reasonable.
I was just pointing out that other places (yes, Mali was until very recently a Socialist state [because USSR offered them universal free college education for it and capitalists just laughed], and Japan's always been another planet) have registration fees and taxes on bikes, and based on engine size. It exists out there.
But if, as ridiculous as it seems, the state did require registration, taxes, and inspection for all bicycles on the road or used in public parks, how many people who use it as their main transportation would stop riding (talking commuters, not weekend warriors)? How high would motor vehicle registration/inspection/taxes have to be to affect their behavior? How slow would the cost creep have to be to be bearable beyond a grumble?
If we could have all the biking infrastructure of our dreams in 5 years, but that meant every bike had a yearly tax on it to help pay for it, would it be worth it? Or would we all rather not have any fees or taxes and spend the next 5 years fighting over money to get the scrap leftovers and one more bike lane in the city?
I'm not saying bike registration or taxes would pay for our wildest dreams, more asking the question - our current structure isn't providing us with what we want, so what are we willing to do about it? I do things I shouldn't have to do all the time because I'd rather live in a world where those things are done than not. It takes more energy to try to get other people to do what they should be doing than to simply do it myself anyway.
Perhaps the musings of a bored, overprivileged geek with an overreaching nesting complex, but please don't confuse them with actual propositions for a realistic tax structure.