The antidote to Islam and to the cultural disintegration spawned by the ideas of modern liberalism is NOT Christianity. If the Republicans and those who make up the dogmatic section of the Right want political power again, they had better get the message.
Right wing radio talk hosts as well as presidential candidates and scads of those on the right in Congress and their influencers push untruths in the guise of truths. Foremost is the notion that America was founded on Judeo-Christian principles and that this is a Christian nation. Even a new book by a famous author on the right over endows Christianity with founding reason, science, and all that is good in the West. Were their da'wa correct, they would have no need to push so hard.