The following quote by Nicholas Peter disproves your last sentence. They
do know how to make BEVs profitably, but the want to
increase profitability even more, difficult though it might be for them in the beginning. Quite different to not knowing how make BEVs profitably.
And the i-Pace is certainly not the only compelling BEV right now.
Zoe, Leaf II, e-Golf, Ioniq, Bolt, those are all very compelling BEVs that are available right now. Granted, to Americans they might not seem as compelling as to Europeans, but the reasons for that are obvious.
The Volt isn't even a BEV, it's a PHEV.
But I give it to you that the Bolt, as mentioned above, is indeed a great effort. The problem is that GM doesn't seem to want to sell it though. That's what I meant by half-hearted. I have tried for months to get my hands on one for a test drive, I didn't have any luck. Plus they almost can't deliver any, at least here in Germany. That's one of the reasons I went with the e-Golf instead, that and the fact that the Bolt interior is such a cheap looking mess of ugly plastic and far too tiny seats.
The Volt was released at the end of 2010. It had a 16kWh battery (now 18.3kWh), and when driving in EV mode could drive up to a maximum speed of 101mph (now 100mph) and accelerate from 0-60 in 8.9s (now 7.5s), and had 35 miles of range (now 53 miles). The battery was (and is) liquid cooled. The engine would remain off above 25*F/-4*C (MY 2019+ -13*F/-25*C).
The Volt was (and is) a PHEV that was focused on electric driving. I have no doubt that development of the Volt helped when GM began the Bolt project.
True, I forgot about Honda. That's because I come from a German perspective (obviously), and Honda has been basically non-existant (0.7% new vehicle market share in 2018 so far) over here for many years now, hence they weren't on my radar.
It's similar to the many Americans who judge BEV (particularly the Leaf) from an American perspective.