Why do you consider it cheating? Playing the system in the most efficient manner isn't cheating.
It's not cheating. It's stealing. If you pool hop you are stealing from the people who use the pool in the intended way.
It's not going to convince those who cheat/steal. It's just like in gaming, the ones who will take advantage of exploits/bugs or kill steal will always consider it being efficient/effective at winning and that if the action isn't allowed, the game wouldn't had let them.
So the only way to convince them, is to change the game rules, e.g. delayed stats, changing allocation based on contribution period, or doing constant payout per share etc.