I said people can root for whoever they want. Was just pointing out the hypocrisy of the only-USA crowd not rooting for the US women's soccer team - it's also a big difference to be rooting against a team vs. for one.
I was rooting for Canada, not really against the USA, per se, as I've been a huge fan of US hockey for a long time. One of my favorite sporting events ever was watching the USA hockey team winning gold in 1980 and watching my Flyers spank the Red Army Soviet team in 1976 (the only NHL team to beat them). I also started rooting for Canada in 1972, during the Summit series with the Soviets, which Canada won 4-3-1, so I've had a long history of rooting for both Canada and the US in hockey. Also, the US wasn't really competitive on a professional level until maybe 30 years ago.