It's worth noting that the "Why don't feminists try and push for gender parity in coal mining?" is a very tired question (and rather silly meme) and it's got without a variety of answers from casual feminists. A cursory Google search for this question on Reddit has thrown up a variety of answers:
https://www.reddit.com/r/AskFeminists/comments/3bjr41/why_ha...
https://www.reddit.com/r/AskFeminists/comments/2rpbil/why_ar...
https://www.reddit.com/r/AskFeminists/comments/3inzi0/lookin...
https://www.reddit.com/r/AskFeminists/comments/97f59k/are_fe...
https://www.reddit.com/r/AskFeminists/comments/63lydf/why_do...
https://www.reddit.com/r/AskFeminists/comments/5z79oe/are_fe...