I won't make any claims to environmental efficacy of EVs, its marginal at best.
There are numerous threats to self soverignity and human rights, and my car being turned off remotely is one that's fair to point out. There is also a risk that bad (or malicious) policy will continue to drive up gas prices, economically depressing anyone who uses an ICE vehicle.
Which way it breaks is a political decision, but in my scenario they have the tools and track record to support it, and in your scenario they would have to go beyond the status quo to lock people down. Its similar attack vectors on bitcoin, is the government more likely to attempt a blanket ban, or are they going to crack down at the exchange level through kyc and restricting withdrawals to custodial wallets?