You can make any claim you wish about the truth or falsity of religions, but if you or your church seek to impose your beliefs with the aid of government, you will be resisted with the same intensity and the same degree of contempt that militant Islam deserves.
I'm not sure there is any movement to "impose" the beliefs of the Catholic Church "with the aid of government," but there should be a movement to establish Christ as King over all nations, although through persuasion, not coercion. The idea seems laughable to those steeped in ignorance and disbelief, but we Christians have hope in Our Lord and know that in the end, He will triumph.
As an aside, I find the phrase "militant Islam" to be rather humorous, as if Islam's roots weren't entirely militaristic. All of Islam, if it is true to the Quran, is militant and seeks the conversion or destruction of infidels. Perhaps the "good" of liberalism, if I can say such a thing, is that as far as it has made inroads to Islam, it has mitigated this desire.
It doesn't. Please do not confuse the present with history.
ping