I would absolutely love it if more women were open and forthcoming about their interest in me, rather than waiting for me to make the first move
I agree with this. The problem is that, especially for young women, there's still a stigma attached to this. Men's interest in sex is seen as completely normal, while women who show a healthy interest in sex are stigmatized. The double-standard is there.
I used to be on a dating site. I received many messages from guys, sometimes dozens of guys per week. Most were nice, but I just didn't have the time to respond to them all. If I messaged a guy first, he automatically assumed I was super into him and was ready to head to bed, when all I wanted was to start the conversation going. So there is this assumption that women who make the first move are ready for casual sex right away.