"You're not American... Your English is bad"

Funny little story. A few weeks ago while getting into a taxi the driver began to ask me the question that is always get, "are you Russian?" I said no I'm American. I was blown away by His response, "no you're not America, your English is bad." I was blown away because of the fact that I wasn't speaking English. I just gave him a look like really,are you kidding me. I don't even know. I got a good laugh out of it when ingot out of the taxi.