Well, as you know DaveC, we view this issue very differently. We just will never agree on it. There is one point people never address. Besides the carbon emissions is the fine particulate matter produced by every ICE vehicle that we breathe in every minute of our lives. There are more benefits to getting rid of gas vehicles than just mitigating climate change, like breathing healthier air.
It's really just some of the underlying assumptions that make for disagreements, and when someone tries to quantify all the assumptions required to calculate the truth of the matter, it's subject to bias. I think we agree on a lot, I bought an ebike to avoid driving, I am sure EVs are the future.
For an example of how break-even points are massively different, compare a Leaf to the Hummer EV. You can probably make 3 Leafs (Leaves?) with the resources it takes to make one Hummer. Now compare that Leaf to a Ford Fiesta, you can make about 3 Fiestas with the same resources it takes to make a Leaf. The Hummer is unlikely to reach break-even vs a Fiesta under any circumstances. OTOH, a Leaf is going to reach break-even vs driving around a Ford F150 very quickly.
Particulates are only an issue with older diesel tech or malfunctioning gas engines, but diesel particulates are a massive issue that Europe especially has misjudged. It turns out there was a good reason the US has such strict regs on diesel cars. The truth is, a modern gas engine's emissions are often cleaner than ambient air in many urban environments. In some places they are gas-powered air cleaners that also transport people. I'm joking, but just to illustrate perspective. Urban pollution from cars can be an issue with some older cars and many diesels though.
Also, if you have grid connected solar, I think it's a nice contribution to the community but you could also do that and not have an EV. So those who have solar and say they charge with their solar panels, well, that's not so clear that's what's really happening. If they didn't charge their EVs the power companies would burn less fossil fuels. Of course by putting up solar you're offsetting that, but they don't have to be tied together. So if you buy an inefficient EV like the Hummer, you're not really fully compensating for your energy use by getting solar, the truck still uses a ton of energy, and that is costly.
It's a complex subject I tend to believe that most of the time in life there's no free lunch, and that carries over to the subject of EVs. There's no getting around the fact it takes a lot of energy to move cars around. Maybe Fusion will become a reality, but until then we're mired in the reality that energy in any form isn't free.
