Your right, it is a sweeping generalization, but it's hard not to draw conclusions as to why many male customers would rather not have me work on their bike, why we keep losing women on this forum, and as to why there are not enough women mechanics/riders in general when the consensus is that it is perfectly acceptable to post photos of half naked women up on a cycling website.
I could be completely wrong, there is no way to prove that the same kind of sexism that makes it acceptable to post that kind of photo on a cycling website has nothing to do with the gentleman that told me he would rather speak to a guy, but it's very hard not to draw conclusions.
+1