A Hummer H3 is less than 5,000 pounds. The EV Hummer is about 9,000. This is a vehicle that's much heavier than almost anything on the road that isn't a commercial vehicle, including similar ICE vehicles.
(And for what it's worth, I don't think Tesla should get a free pass here. Tesla Model S's generally weigh about 4,000 to 5,000 pounds, which is awfully heavy for a Sedan. They just don't look heavy, so people don't think about it.)
I'm in favor of EVs generally, but I think the would would get along just fine if there wasn't an electric Hummer.