Fighting in the canteen.

This is ridiculous.  I want to know what's going on with humanity that they deem it perfectly fine to yell obscenities at someone they don't even know for dress.

The Story:

My friend Angel and my cousin Hanna went to Concord Mills. It is a large mall about 30 minutes away.  When we got there, we walked around and met up with Angel's friends Olivia and Brad.  I dress like a metal head most of the time and I had on a black "I HATE U" shirt.  Hanna dressed slightly preppy.  Angel dressed slightly scene to Brad's entire scene, and Olivia dressed about like me but in a band-t.

We walked around for like ever.  Angel and Hanna and I arrived at 1.  Olivia and Brad arrived at 3.  We stayed until about 6.  Brad and Olivia left a few minutes before because Olivia had to leave.  Angel came and found me and Hanna and we decided to get out of there.  As we were leaving, we stopped for a bit because another group of people Angel knows was there and were texting her.  While we were standing there, Brad and Olivia walk outside. Angel goes to greet them, I follow.

A group of dumbass kids are sitting on a bench.  There's 5 guys and a skanky girl.  The guy goes "Oh my god. What the fuck?" as brad walked out.  The girl says "That is nasty."  I heard it, but didn't say anything because I’m over 18 with a bunch of teenagers, I can't get into fights and get arrested.  I waited for it because they kept staring.  The OMG guy says "Fucking Faggot!"  Angel and Brad stare wide eyed at each other.  Me and Olivia look at each other.  Brad's hurt, but he wasn't going to say anything.  Angel responds with. "You're a dick!" The guy says "Thank yah."  Angel: "You're welcome since we're giving compliments."

Brad and Olivia walk off.  Angel and Hanna and I walk to the car.  I look back at the group that was on the bench and they're following us.  At this point I started to map out what I'd do and I figured I'd football tackle a couple of them and go from there.  I had a full bottle of water and some rings and a studded bracelet. If I was going to get my ass beat, I wasn't going pleasantly.  Angel turned around and looked back and OMG guy flipped her off and she flipped back.

They turned to one of the group's car and they start mumbling bad things loudly.   Angel and I by this time are pumped for a fight and Hanna's just silent.  The only thing I remember was hearing a loud mumble and screaming "We can't hear you with that dick in your mouth!"  Angel screams out after I finish "Yeah! Go suck another one you God damn pussy!"

There's two guys looking for their car as we're walking to ours that heard everything.  All they could see were a bunch of guys yelling at 3 girls.  We figured later that they would have our backs.  We did apologize to them and they said "Nah, you're straight." with amused smiles on their faces.
We catch up with Brad and Olivia at Wal-Mart and tell them what happened.  Brad's like "I heard yelling! That was you guys!?"  They were across the other side of the place we parked which was a fairly great distance away.

The Question:

Wtf is wrong with people!? Who raises these little pieces of shit?!