Brilliant and creative minds have explored the argument territory quite thoroughly. You should expect to bring nothing new to the table.

Also, if you guys have already figured everything out, then why is convincing women perceived as extra hard? Obviously something is missing, and that element might be anything from not knowing all of the objections women will make to not having good enough persuasive skills to a seemingly unrelated difference between the genders (maybe it's that women don't read as much about technology or that they go to doctors more often and have learned more about the flaws in medical technology, leading to distrust) - but without opening up a line of communication about it, and experimenting to see what kinds of ideas emerge, how are you ever going to make testable guesses about what the missing piece(s) is/are?