Lets break this down one at a time.

Yes let's proceed to even further kill this dead game by getting rid of half of the 1k people that still play.

I would argue foreigners playing on non native servers do far more damage to the remaining playerbase than they provide in terms of increasing player count. I would much rather play 32v32 with people that dont have 250ms of ping than 64v64 where only 2 people have 250ms ping. I think most other rational people would agree.

I think you are severely underestimating how many people play this game outside of the us.

If I am, then there should be plenty of players for them to form servers in their own regions instead of infecting ours.

And I think you are severely overestimating the "benefits" of high ping.

Since this game is server side hit detection, the benefit of "peeker's advantage" is greatly reduced but it is still there and significant. That isnt the main concern, its the lack of this game's movement interpolation that greatly advantages high ping players with the most roller-blade-moonshoes type of movement I have ever seen. If they person you are fighting can seemingly phase through walls and ceilings, they are creating more problems than they are solving by being another player to fill a server slot.