how do i remove these drums?

That's interesting. I've never had a problem removing wheels. I usually just dab a little anti-seize around the hub register on the axle, but never between the drum and the wheels. I would think it'd take some serious corrosion to fuse a drum/disc to a wheel.

maybe, but it looks like you live in a part of the country where "road salt" is not a common form of pavement

ive had several cars over the years with alloy wheels on them that were a royal pain to get off
I don't know if it is caused by the road salt or not, but ever since I started using a dab of grease its been smooth sailing