How about instead you can the whole thing and admit it was a bloody mistake from the start? Seriously this was a terrible idea, executed even *worse*.
"Ok, we will no longer distinguish between regions, instead of a league account for a specific region, you just have a Riot Account"
"Oh cool, does that mean we can now use the same account to play on any region, say if we want to play with friends on another server?"
"Hah no, that would actually be useful. No you still are locked to one region per account. We just removed the distinguisher between accounts to reduce security, lower the total number of accounts, and cause username conflicts. Oh and we chose the most stupid way of resolving those, by making it the last man standing gets to keep their accountname. Which is the account that no longer plays the game"
And with all that nonsense, here comes the big question. *Why*? There are a ton of problems with this system. But there seems to be absolutely no benefit. We dont get to switch regions on the same account. And even if the other games are going to not seperate by region, that doesnt mean you need to get rid of the system. Just do it like you did with the LoR beta, where you still login by region but arent seperated by it. Why instead make this stupid mess that noone wants or likes? Frankly at this point if you refuse to change the system or fix how you handle username conflicts, Im simply gonna stop playing League. Its been a fun 10 years, but Im not about to let this go.