Why not extend this to basically everything not essential to life? Traveling to tropical destinations is clearly harmful for the world, living in big homes spaced out from each other is another one that causes unnecessary pollution. Selling alcohol, foods high in saturated fat (butter), etc.

Targets have a Starbucks selling 10x as much dissolved sugar 25 feet away from checkout aisles. Are those unethical? How about in a separate Starbucks building, but on a pad site in front of the store with a drive thru?

Seems like an arbitrary place to draw the unethical/ethical line.

I don't understand what "using people as a means to an end" means here. Sounds like selling something to people to earn money, but that would describe all business.