Ever heard of the expression: 'No one is better than the team'?
No matter what the sport, the team always comes before the individual
Take me for example, I support a team in Soccer. Over the course of the past few years, we sold a couple of our best players who I greatly admired to a team in Spain. This fucked us up completely (especially so when the money received for said players were stupidly spent on crap) and as a result, the team has struggled greatly this year in the league.
Did it piss me off? Hell, yeah. Did it cause me to stop supporting the team? Nope.
You stick with your team through good times and bad.
Players come and go but the team stays.
You are a LeBron fan. You are not a basketball fan.