That may indeed be true, and it is a matter of degree. After all, who really minds if a young girl gets a little tattoo on her ankle, or a guy gets something on his deltoid?
But people who cover large, exposed parts of their bodies make a choice, and it is my right to judge them for the choices they make.
And I judge people negatively who have large parts of their bodies covered with tattoos. My opinion may certainly change when I interact with them, but in the absence of that, I reserve the right to reach certain negative conclusions about them based on their physical appearance.
I don't judge people who are unattractive. I don't judge people based on their race or sex. I don't judge people based on what God has given them.
But I do judge people based on what they intentionally do to what God has given them.