Agreed, my bad choice of words. I really meant 'stupid' from a slightly ironic, competitive point of view. It's like the pressure to cheat in professional sport is obviously so intense, I'm sure a lot of a cheat's motivation is to remain competitive because their colleagues are cheating so they feel they have to as well, otherwise they lose.
YMMV, in my uni there is more or less zero impact of cheating in your homeworks in most classes: the homework has low weight in final grade and are graded very generously.
I agree that making assignments not designed with external sources in mind significantly impact the final grade is not ideal. I think this is minor and easily fixable point rather than some failure of the whole education system.
What's funny about this is if you are an athlete who cheats constantly while growing up - you'll never develop the skills to be able to make it as a pro. Interesting how students don't see this same situation with their homework