They would do this by mandatory religious laws and amendments to the Constitution. Some, I am sure, would change this democratic republic into a theocracy. Religious rites required in public schools can only polarize a community that needs more than ever to be held together. In this nation, with our separation of church and state, the government cannot tell us what to worship, when to worship, where to worship, or how to worship. The fourth R, religion, is a function of the home and church.
Religion is personal, private, and, most of all, divisive.
Home of Hinduism, birthplace of Buddhism, with more Muslims than Pakistan, and significant numbers of other faiths, including Christians, Farsis, and Jews. When working there recently, our firm sent around a list of religious holidays covering several religions. As can be imagined, it was fairly long. The staff could then choose which days they wanted off, subject to a fixed limit. Pity that we all can't be so accommodating.