Again
How many people have left an OO place because of the Kol Korea and went to an Agudah or similar place?
And if you want to say this is for the future, if you open a Shul near an OO place and try to convience the members to move over you will have alot more success, I can pretty much if the right rabbi is chosen you will get more than 1 to realize OO is wrong, You will get much better success.