Hot take, but I think in public spaces/within the purview of the state, Christianity Uber Alles isn’t such a bad thing. Bi-cultural societies can only work if there is one dominant culture under which other cultures are permitted to prosper. In private, in their own communities they may do as they wish within reason, but it remains subordinate to the host culture (which they can roast on social media to their heart’s content).
The Constitution was written for a Christian Republic. Even if it tolerates other religions or views of the world, its institutions and public spaces should remain Christian on no uncertain terms.
TL;DR, worship your Gods as you will, but remember to Hail Caesar at the end of the day.