Let me ask you a question.
Let's say you have a theory of morality.. and we'll call it "Turtlesoupism".
So, you have many followers of "Turtlesoupism".. yet, one becomes a horrible person as does all sorts of bad things. They steal, they run from the law, they slit someone's throat, etc. They claim "I'M A FOLLWER OF TURTLE SOUP"...
Are you bound to them?
Or, did they leave you, and they're claims are BS?
By your logic, you'd have to own the stealing, the law-breaking, and the murdering, because they claim you. By normal common sense, you wouldn't, as clearly their actions don't align with turtlesoupism.
This all just adds up to you being intellectually dishonest and just an opportunist. Have a brain and try to think for a second.