I rely on mass transit or walking for most of my transportation, so it is very rare for me to be driven in a car. Maybe 2 - 4 trips/month in a Waymo, and a monthly trip to Costco. Everything else is done on foot or transit, including thrice weekly commute and weekly grocery shopping.
I have no problem with roads in the abstract for public services, including for fire protection and buses. I do have a problem with using my taxes to subsidize private car ownership. Again, why should I help pay for someone to store their private vehicle on city streets? I also have a problem with all the externalities of private car ownership that make me less safe.
Yes, transit is subsidized in the US. However, I won’t ignore the fact that private car-ownership is just as heavily subsidized - if not more so — as mass transit. If we are having a conversation about the efficiency of one form of transportation over another, we need to look at them both through the same lens.