I used to feel bad for Cubs fans. Bartman changed that.
Most Cubs fans don't feel anything for Bartman. If you're a Cubs fan at all you realize he did nothing. Gonzalez still couldn't field a grounder. Prior still threw a 0-2 fastball down the middle to Rodriguez. The only ones still yelling about Bartman are a handful of blowhards or ESPN trying to make a headline.
Saying you don't like Cubs fans because of Bartman would be the equivalent of not liking any Brewers fans because of Braun being cheered.
The way I rationalize any hope of for the future of the organization is because of how baseball has changed. Up until the last few years of the 90's, mlb payrolls were all within a reasonable vicinity. It was those last few years of the century that they got out of control and really began to separate. You can argue that that is when the sport really started to suck, and you'd probably be right.
Teams with the top of the line payrolls, while obviously will not always win, will have a leg up. It hasn't been that long that the Cubs have been operating within that system, and if they can figure out how to, it shouldn't be like the previous 100 years because they have a gigantic market and huge following and the ability to spend in the top 5. The way the system is moving (and with all the $ at stake it's not about to change) they should be able to contend slightly more regularly and at least have a chance to lose bigger games instead of losing them all.
Even as a Cubs fan I hate MLB and how it's run. It's a terrible joke of a league. But it's probably their only chance.