Presumably most EVs have regenerative brakes. I almost never use brakes on my Tesla (only for urgent stops).
> The big sources of pollution that your average ice car emits now are from the tires and to a lesser extent the brakes.
I'm not sure in what sense these are the "big" sources, but it's not by mass. An ICE car emits like 30kg of carbon per 100 miles while an entire car tire weighs only 12kg.
> At the end of the day the pattern of everyone taking a 5000lb vehicle that you replace every couple years to go anywhere at all is the thing that isn't sustainable, not as much the particular energy source for that vehicle.
Of course, most people don't replace their vehicle every couple of years, which suggests that we can decouple the "replace every couple of years" from the "vehicle" bit. In other words, driving (even when citing the weight of the vehicle, as though it has any bearing on the sustainability) is plenty sustainable, but what isn't sustainable is the same thing that plagues every aspect of American (and to a lesser degree, "western") life: consumerism, throw-away culture, importing cheap plastic garbage from China/etc, etc. Nothing special about driving in this regard.