This may be a nation largely founded on Christian principles, but we are under absolutely no Constitutional obligation to follow the clergy in matters of government. Render unto Caesar what is Caesar's...
We have the freedom to worship as we choose BECAUSE we have established the secular rules that protect his country from being overrun by those who would take that freedom from us.
Constitutional guarantees mean nothing to many who are already here, opening the gates to more will not reinforce those guarantees, rather, we now deal with contempt for our Constitution and way of life from many who were brought in contrary to the law.
Not even the church will be able to provide sanctuary for believers if those we let in willy-nilly without vetting destroy our way of life.