How do you respond to being called a bandwagon fan?

[Michael]

You see the teams I'm a fan of, everytime I get on this page on Facebook called Extreme Sports Debate I get called a bandwagon fan when that's not even the case. Yes, these teams have been successful for the past few years, but I was fan even when they were mediocre. How do you respond to being called a bandwagon fan?
To Bart: Well I was born in San Francisco, but my family is originally from Los Angeles. I went to my first Lakers game when I was 5 years old back in 1994 I've been a Lakers fan ever since. I became a SF Giants fan in 2008, they were the only baseball team in my hometown so i started rooting for them and they were awful but I stayed with them. The 49ers, I became a fan of them at the beginning of this season. Basically, my homestate is California so I root for all California teams.
To DEBS: I get what you're saying, but I've been with all three teams through the good and bad. I won't jump ship at all. Because once I became a fan of these three teams, I'm a fan for life I won't jump on anybody's bandwagon ever.