Macs Are For Stupid People?

I've heard this statement made several times. I heard again today and had to counter (I don't like my demographics being denigrated). We went back and forth for about an hour and I described the stable framework of the Unix core and powerful command line systems. I talked about the popularity of Macs amongst even Google engineers to which he said all of their Macs run Ubuntu. I'm not positive but I think that that claim is BS. As a Mac user if someone made this claim how would you respond?