You support the shirt, not the players.
The shirt's not worth a [dang] if the players suck.
I beg to differ. If you only want to support a contending team then why bother choosing a team to begin with. Just support whoever is doing well every year.
The club is bigger than its players.
You don't just support winners, but you don't blindly accept losers and put up with a team full of steaming piles, either. The second part is what homer fans forget.
So proper fans stop going when the going gets tough?
That sounds awfully Miami Heat-ish to me.
There is no such thing as a proper fan. The whole concept is nonsense. You're not a "proper fan" because you're willing to spend hundreds/thousands of dollars on a garbage product. You're just a consumer who's willing to spend hundreds/thousands of dollars on a garbage product.
And, as Bruins homers found out for years, and Cubs homers have been finding out for more than 100 years, when you accept crap teams from your ownership, you get a lot of crap teams and still have to pay for it. Homers like to pretend that some badge of honor. Outside the sporting world, it's generally known as being a sucker.