I'd only be afraid if he gave me reason to be afraid. Tattoos, makeup, clothing, putting on attitude are sometimes used as a line of defense. The person inside is what matters.
The first time a met a friend of my son's, I see a young man with a gazillion piercings, tattoos, grunge clothing...he opens his mouth and exhibits the best manners and demeanor of any of my son's friends. Hilarious!
Regarding the personal attacks thing, I think some people like to play the victim/martyr even when they are not the target, don't even live anywhere near the target. We have so much freedom in this country and laws to protect us that very few of us have ever experienced a real threat to what we believe or don't believe.
This taking up the torch in the name of Christianity or Atheism rarely rings true for me. It usually sounds like hype, getting all worked up for a nonexistent cause. We live in America. We should go live in a third world country for a while; we will find ourselves a little more thankful for the freedom to be ourselves and voice our opinions.