Baseball isn't keeping Pete Rose out if the HOF. The HOF is!! They allowed band player's into the HOF until they changed the rule a year before Pete Rose was eligible in 1992. In 1990-1991 they added a clause to the eligibility rules to not allow band players.
The Baseball Hall of Fame is throwing away historical players. These people are part of the history of the game. Good or bad they need to be in the Hall of fame.