People seem to forget that gas cars have a battery in them too and that fails in cold weather.
I think you missed the point. EVs also have a 12v, for the same basic reason of starting the vehicle. But the bigger factor is that EVs are often plugged in, which will automatically warm the battery.
I was under the impression that the 12v also runs all the standard car electronics
Lead-acid batteries aren’t lithium ion? And the car starter battery isn’t equivalent to that of an EV?
You might as well say that I have trouble starting my gas weed wacker, therefore cars are hard to start.
All chemical reactions slow down in cold weather, including lead-acid cells. In extreme cold, everything is going to have issues. At least EVs have internal heaters that let you warm them up.
And unless you keep that EV plugged in and charging during frigid temperatures, that warming will cost you in usable mileage. And you might need a better charging system than a simple 110/120V circuit. Because that might not be enough to prevent some loss of charge.
The point is, there ain’t no free lunch here. Batteries, at the current tech, just tend to suck at low and high temps outside of their intended operating range.
You can buy a lithium car battery these days. Expensive as all get out, but you can get one.
You shouldn’t replace a different type of battery with another. The vehicle will be set up with a different charging profile and you’d need to change that as well.