Sorry to hear it OP, some people speak without thinking

You should have asked her when did she lose her manners and respect for others.

Some people get into the habit of being rude.

And, unfortunately, like any other habit it is difficult to break.

The retardation, it runs deep with this one

That sucks, sorry about that. Im sure your English is great.

No need to patronise him.

You can tell her that her hearing has improved since then, and give her an A for improvement.

Well, at least you don't have a jersey shore accent, right? Hard to get any respect if you sound like Snooki.

Damn that show. Basically nobody in NJ talks like that, and the rare few who do are from New York

Thinking that you speak perfect English is a matter of opinion.

That parent might have been just the slightest bit racist...

No. Commenting that someone has/had accent is NOT racist. Discriminating against them or judging them based on the accent is racist.

Assuming that someone isn't a native English speaker because they are of Asian descent is racist.

Asian accent is cool

Wow. I'm sure the kid is great too (sarcasm).

the kid has nothing to do with this.

I know lots of good kids who have terrible parents. It can happen.