As someone who attends games in Nashville, this statement isn't very true anymore.
When I first started going to Nashville for games in the early 2000s, it was easily a sea of Red and White fans - better than 75% most times.
Fast forward to the games I've attended in the last few years and the percentages have almost completely flip-flopped. It's not unusual to see less than 30% DRW fans. (granted, not everyone that attends games does so in their team's colors, but you can usually tell who most people are rooting for)
Wings fans used to be able to drown out any Let's Go Predators chants by Chanting Let's GO Red Wings... not so much anymore.
And to all that, I say, good for them! Having their own fans outnumber their (arguably) biggest rival's fans is a badge of honor that depicts the growth of the fan base.
wow! thanks a lot! good luck with the franchise in Nashville, it'll probably be tougher business now without Wings games driving up media and fans.