Usually, if it is on FB, ignoring is a good policy.
I've read Robert Wimmer's views on authoritative automotive sites in the past and he is speaking from the actual facts. Most of us are in favor of EVs and being good custodians of our planet but you really need to learn how to separate the fearmongering, happy talk, and facts, which Wimmer has done. For example, I've been listening to climate change fearmongering since the 60s yet we are all still here, it is just hot-air fearmongering.
Switching from ICE to EVs isn't like throwing on a light switch, it is a process of evolution into alternative transportation. There are many hurdles to overcome, including electrical infrastructure, EV range, EV recharging times, the cost to own/maintain, and batteries, the Achilles' heel of EV transportation.
I think GM has overstated its goals likely to please the current goals of the politicians. It is interesting to see the push by politicians when collectively, they have little knowledge of the many facets of the technologies that will have to come together to make EVs practical nor do they back their goals with a path to get there or the funds to do it.
Happy talk aside there are realities that you do not hear about, for example, the recycling of battery packs and the mining of minerals for the batteries. For example, did you ever read that the mining process for lithium releases 16.5 tons of carbon dioxide emissions for every 1 ton of lithium that is extracted or that mining lithium requires water-intensive mining operations that ravage natural environments? No, because it is not happing here in the states. EVs create an extensive, albeit indirect, carbon footprint.
I spent a career in automotive and about 5 years of it on various EV technologies before retirement. It will happen but in its own time. There is no magic like "dilithium crystals", at least not yet.