Which Europeans?
Countries in Europe with approximately the same obesity problem as the US:
Poland, Croatia, Romania, Britain, Hungary, Georgia, Slovakia, Chechia, Ireland, Greece.
And of course New Zealand, Australia, Canada are all in the same boat as well.
Those are all over 30% obesity and climbing (Romania is 38%, nearly at the US levels). The US is of course the leader of the pack, however it's all the same fundamental problem.
My running theory is that there’s more weight-discrimination in Europe, so you’re just less likely to see the overweight/obese in customer-facing positions.