Is it racism?

[Dylflon]

I was playing a game online and this guy was harassing me for 45 minutes because I was Canadian. He'd yell at me for every typo or anything I did or said. He called me all sorts of names and used canadian stereotypes against me.

Now, I couldn't care less because obviously this guy is a retard. But I told him he was being racist and he called me a homo and said canadians aren't a race so it can't be racism.
But I don't think that actually matters. I still find it to be racist.

Do you guys think it's racism or not?