The real solution is to invest in building public transit infrastructure, to design cities to be walkable.
We are talking about Paris here. Paris has the best public transit infrastructure in the world. Paris is highly walkable.
People who drive downtown have no excuse for their actions and must be penalized accordingly.
When London implemented congestion pricing, it significantly improved traffic and encouraged people to take transit. You are completely ignoring reality if you oppose congestion pricing on the basis of it being ineffective.
You are deeply unserious if your proposal is just "ban all cars lulz".
Congestion pricing and paid parking have objectively reduced traffic in downtowns across the world, and you are deeply unserious if you want to achieve a goal but refuse to do anything to work towards that goal.
You are seriously advocating for the massive subsidization of drivers here. I do not weep for the ability of the common man to impose massive externalities on their fellow men and have their behavior be subsidized.
Cars are a luxury good that most people simply cannot afford without massive subsidies. Consider how in Hong Kong and Singapore, where cars aren't subsidized, only the rich can afford to drive. Do you think that this is wrong? Should Hong Kong and Singapore bulldoze their cities and pave over paradise so that poor people can drive too?
You are acting as if driving cars is a God-given right that poor people are being denied. There is no such right to drive a car. The private automobile is a luxury good that would have never spread to the masses if not for massive government subsidies. Driving is not a civil right.