“As long as radical Islam is thoroughly discredited and deposed as a result.”
A true believer will never believe in failure. From that aspect, Islam is like socialism or communism. The adherent will say, “Real Islam has never been tried.” Or, “We will do it correctly this time.”
Or the old !standby: “the Jooos! are behind it! Now run along and have a pogrom, as long as you’ve got those pitchforks and torches.”