Full koreans on rank

Hello, this is the first time I have participated in one of these forums in my life.
This is my approach.
I am from Mexico, I am rank B, for 2 years, when I rank I only get Koreans, I am on the WEST server.
Does anyone know how I could modify that?

Play a game that does not have 90% korean player base

Doubt, that you only play vs Koreans.
What you asking is not to not play vs Koreans but to increase your chances to get up the ladder no? XDD

If you dont want to play vs Koreans it is pretty easy first dont play at their main playing hours. Probably when they dont stream and when they are sleeping. Just look at their times zones and change those hours to yours, (://www.timeanddate.com/time/map)
I guess around 17 hours in the future of your time so add around that and you will know their time … Now play when they are sleeping most likely.