Their is indeed a third way, which is not that of Christian sharia, as the gov. cannot punish which faith one simply professes, only its actions, nor and teach formal religious education, but there is that which was the Constitutional way for about 150 years, which is to recognize that the state cannot be separate from religion the ACLU way, as its moral laws flowed from religion, and reflected the beliefs of the Founders overall and the general Christian faith of those who choose them, and indirectly those who elect the early interpreters of the Constitution. The latter electorate is what has changed, often with a form of "secular sharia law' reflecting the secularization of society.
But if the Constitution was truly interpreted the way the Founders manifested they intended, many of whom said and did things that the ACLU type would object to, then there could not be Islamic sharia law, nor the secular sharia that is hostile to any official proclamation expressive of Christian (vs. Muslim) faith, but our laws would reflect the general Christian faith under which the Constitution was written and reflects.
There is a third way. We put cotton in our ears so we can’t hear the shrieks of the MSM and the progressives and we kick the Muslims out. :-)