Yes, I am. NHL Hockey has gross annual attendance around 21.5 million (roughly the same as the NBA) and NFL football has annual attendance of about 17.5 million.
Yes, I know there are far fewer NFL games, but then their stadiums hold upwards of 5 times as many people. I also know there is much more TV viewership with football. It's not meant to be a numbers pissing match, it's simply meant to show that there's not an insignificant number of hockey fans out there and the sport can't be brushed off as being "unpopular".