There’s plenty of guys with only 1 account, I only play with one, but I do not care if others play more.
I’ve said it before to you many times, it seems you forget to enjoy playing the game.
Don’t worry that others play and win 50k gems, its only 1 person a month. Even if they cheat or whatnot, I am decent raider, but I’m quite sure I will never win it even if all the cheaters and multi account guys are removed, so no difference to me. I am guessing the same will apply to you. Yes its not good, it gets fixed slowly (maybe) but its not the doom and gloom you seem to think it is.
Go and try playing multiple accounts yourself. I can guarantee your main will suffer, grow slower, less rewards, less everything since you need to spend time on other account(s).
even if you only get multiple account to do nothing except collect PL ticket, I am willing to bet even if you had played with 10 PL accounts, your main would still not get top 10 score, probably not even top 100 and still have no real benefit.