This is precisely the point. The more options people have, the fewer cars on the road, which leaves space for those who actually need them. Motorists have yet to figure out that cycling advocates are their friends.
I could afford a car but I actively choose to live a car free lifestyle. The work I do both in my day job and my personal advocacy is to allow others the ability to have a choice about how they get around. Or as I like to say "From car required to car optional." Choose how you move.