Note, you don't have to ban combustion vehicles everywhere, but only in enough markets where there is no point for automakers to make them anymore for the remaining smaller markets. Once supply chains are reconfigured towards EVs, and light vehicle petroleum demand is on the decline, the death spiral for combustion vehicles is locked in. They're even half the cost per mile to operate versus a combustion vehicle (per the US DOE Alternative Fuels Data Center).
Suppliers are already contemplating what the future looks like [1] [2].
[1] https://europe.autonews.com/suppliers/bosch-may-close-german... (Bosch may close German factory amid move to EVs, report says: Demand for the plant's electric fuel pumps and injection valves will decline)
[2] https://www.detroitnews.com/story/business/autos/2021/04/27/... (An advocacy group representing auto suppliers urged Congress on Tuesday not to back a speedy phase-out of gas-powered vehicles, arguing the shift will cost up to 30% of supplier jobs.) (my note: overlaps with this thread's article, but still has some novel information)
I think of asphalt as a waste product of petroleum refining. What are roads supposed to be paved with, when there is not any asphalt to cover them?
"'Non-exhaust particulate matter (PM) emissions by source and car size.' Electric vehicles will solve nothing of these problems." - https://twitter.com/wrathofgnon/status/1386491243413135362
The most urgent elements of EVs that need to be looked into are fire risk and control of wrecked vehicles, toxic battery element mining, processing and disposal and cost as previously mentioned. The sheer weight of EVs make tire pollution (a massive problem in urban areas from all vehicles) a big concern.
All cars should revert back to a far more recyclable manufacturing state: the alloys and plastics modern vehicles are made from are not
Cars today are far too tech heavy. People want simple, robust and long lived vehicles with far fewer bells and whistles. When you look back even 25 years it's very revealing how simple and longer lived they were.