Well, we can ask God to discredit Islam. It could happen overnight -- many of us who grew up under the shadow of The Bomb were pleasantly surprised with the fearsome Soviet beast imploded.
The question then becomes, will we be ready for our opportunities when a billion folks turn to us and ask, "Now what?" May God grant that we be ready! Learning Turkish is a long lead-time project, so now is a good time to start!
I think all good natured citizens would be ready. I hope you are correct. However the USSR had not been around for 1300 years or so. Islam has quite a longevity.