The 10 Commandments are the only valid Scripture?
Of course not - I'm just making the point that some people seem to get more upset about a rule in Deuteronomy (like not eating shell fish, wearing cloth made of more than one material, not eating a BLT or not being homosexual) than they do about the 10 commandments - which certainly take precedence. The 10 commandments are the law that God handed down to mankind. The other rules are not as important.
If they were as important - then why did God not include them in the 10 commandments?