Consumers in theory would punish Apple by not buying Apple products. But they don't and I can only guess why (they don't care about browser rendering engines).

Consumers in theory would punish Apple by not buying Apple products. But they don't and I can only guess why (they don't care about browser rendering engines). If you're trying to narrow your punishment to be specifically "the crime of not letting me pick my own browser rendering engine" then I can't help you. This is not a hill I even remotely interested in dying on or spending more time on.