There is nothing anti-religious about politicians seeking to protect the health of their constituencies by limiting the number of congregants in a closed space during a pandemic; what’s anti-religious is to use God as an excuse for doing something that you know could harm people.

But there is something anti-constitutional about it: “Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof.....or the right of the people peaceably to assemble”