As I wrote above, the Boy Scouts will not really shrink, as you wrote. They will become the youth movement of the Progressives because they symbolize tradition in the public eye. Turning the organization into a haven for homosexuals is simply a means to the end of driving away the conservatives who would have prevented the left from coopting the organization. It will flourish as never before, but not in the aces or with the people who populate it today. It will be the Young Pioneers.
look at the girl scouts, it became a defacto homosexual female recruiting organization.