I guess what troubles me is that it's not all that dissimilar from the old gentlemen's clubs* which have all but disappeared. There is of course, one exception. Instead of being a place where men can gather and enjoy each other's company and a certain elan, mannergarten is a place billed as a kind of day care or kindergarten for grown men.
So, why is it that a gathering of men by their choice is presents an edifice that needs be torn down, but one where the men can be infantilized in some way is acceptable and funny?
*I'm talking about the old dark-panelled social clubs where one could enjoy a port and a cigar in the company of other men, not the common euphemism for an "upscale" strip joint.