Religion has it’s place, but it is personal, and therefore cannot be used to determine rules and precepts for human behaviour
You’re not being consistent here, but letting your opinion and desire to marginalize religion in favor of relativism assert itself over your previous ideas of truth.
This would be more consistent:
If any moral values coming from any one or any combination of religions is true (if it is indeed how we are supposed to live, what is best for us, and/or what we may be judged by), then those moral values
should be applied across society.
If those moral values are untrue, then they are non-binding and neutral. However, since society still in
fact is a living together of humans with different ideas, something still needs to be worked out that allows society to function given the different ideas of its constituent humans.
So if you are wrong about religion and moral values, then they should be applied to human behavior beyond the individual level. Since it is a distinct possibility that you are wrong, the debate must be had and cannot be dismissed.
If you are right about religion and moral values, then they do not need to be applied to human behavior beyond the individual level.
However, again the same caveat is posed, and again you have the situation where human community must find a way to function given peoples’ different ideas. So again, you cannot dismiss moral values.
There is no reasonable ground under either circumstance by which you can claim that “[religion] cannot be used to determine rules and precepts for human behaviour.” Well, one caveat: if you live in isolation from anyone with moral or religious views, then you may ignore validly ignore religion as a means “to determine rules and precepts for human behavior.”