No comparison
There is no comparison with Buckner and Bartman.
Bill Buckner was a ball player, in the game, that made an error during a play. Sure it's regrettable, but errors are a part of baseball- it's actually a stat.
Steve Bartman was a spectator, not in the game, that reached over the rail into the field of play and interfered with the game.
Steve Bartman interjected himself where he did not belong. I have no sympathy for him. Only a total goon reaches into the field of play for a ball. And no, not "everyone would have done the same thing". It doesn't take a baseball wiz to understand that you don't reach onto the field during the play.