I'm sure your conclusions were ignored. But not because of your gender, it's because they didn't like what you had to say. Buddy, I've seen it with my own eyes and heard it with my own ears. As "one of the boys" men feel comfortable telling me things like "I'll never let a girl fly on my endorsement" ( this person being a flight instructor). And "Is there a different mechanic I can talk to?" Before she even gave him a diagnosis. Or flat out ignoring a really good suggestion in a meeting at a brand new school I worked at. Only to have a male colleague suggest the same thing an hour later to praise and action. Shit's fucked.

Sure, ignore men too. But sexism is real, a woman's advice is more likely to be ignored or yeah, not asked for at all.