American citizens would not willingly give up their first amendment rights (religion, conscience protections, association). That is the intent of this administration - to undermine constitutional rights. Because our Constitution was framed around the idea of freedom of choice paired with reward/consequence (thing "original sin"), setting religion up as the straw man is the obvious way to lay groundwork for erosion of civil liberties.
I don't expect non-Christians to defend religion, but I do expect them to defend their constitutional rights, even if it does involve defending Christian establishments. They are unwittingly laying the groundwork for their own loss of liberty.