Country laws override religious observances. Unfortunately, this has already been breached. The country has implemented Muslim banking: Sharia-compliant banking which follows the rules of Sharia.
No chance at all of that being rolled back. None. The country has already established one religion, over all the others. Illegal and unconstitutional.
The Government has not established any religion. It permits banks to offer Sharia-compliant banking for customers who want it, just as it permits restaurants to serve kosher food to customers who want it. Those banks are still regulated by the banking regulators and must follow all U.S. laws.