I’ll make it simple.
You can’t force your religious beliefs on others.
You can’t prohibit other peoples’ actions based on your religious beliefs.
The code of Ur-Nammu, which predates Moses by centuries, expressly forbad murder, so there were laws regulating basic human behavior before the Bible.
The Supreme Court has overturned many state laws when they interpret that the state is doing something that either discriminates or harms a vulnerable group of people. You can try to provide examples that prove your point, but we’ve already seen a Supreme Court decision that reaffirmed the ability for gays to marry each other, which happened with a conservative majority in the court. Individual rights are being protected from governmental interference. Isn’t that what conservatives want?