good grief . . . since when does the gender of an individual inhibit/stop or adversely impact the human learning process?
i will assure you that Mr. Montemayor's response was not meant to belittle you in any fashion.
Perhaps you are imposing limitations on yourself in that you believe that "men wont share any of their mechanical knowledge with" you.
If you demonstrate good mechanical aptitude/knowledge and a willingness to learn, then perhaps the "men in the shop" will gladly share their expertise with you. Certainly, if one presents themselves as incompetent, then you surely can understand such responses from "men in the shop".
Regardless, good luck with your ventures and check/leave the attitude outside the workplace.
Cheers!
-pmover