I don’t think there is rational argument against the existence of common laws. The issue is one of demanding that they be common.
When every creature naturally strives to survive - that is common - but is it forced upon them against their will? Or is it merely a reflection of their will.
Laws don’t need to be made to force people to do what they were going to do anyway. Laws are made to force people to do something that - supposedly - the majority of people will benefit by - despite the use of force. Man doesn’t seem very good at figuring out exactly how to do that even in singular nations or religions - yet it is proposed that the entire world should be subjected to such insanity?
This seems similar to the idea that Man MUST populate Mars - when Man hasn’t even figured out how to live peacefully on Earth.
Why not fill the entire universe with Manly insanity?
Different kinds of lives in different kinds of situations need different kinds of rules for their cooperative efforts - that is a “God given” fact.