First of all, just wearing the same color shoe does not eliminate difference between men and women.  I am against black because I've worked far too hard on my feet (and gotten far too good results) to hide them in black shoes.  I don't wear black slippers either, I wear white.  We need to do away with the idea that guys have inherently bad feet --- we don't.  It's just a lot of guys have bad feet because they never really work them well.

In an ideal world, I would probably wear white pointe shoes, just like my slippers.  But in this world, pink pointe shoes are easily obtainable, black can be found sometimes, and white is special-order only.  So given the realities, I will go with what's easiest, especially for practice.  Anyway, white gets dirty and gross-looking too fast.

There are so many differences between my body and a women's body --- and how we use our bodies --- I am not in any danger of lacking differentiation from the women, no matter what the color of my pointe shoes.

Now if I can only get a good sous-tenu turn en pointe, I can improve my double tours... not to mention the possibility of sous-tenu turns en pointe going INTO the double tour!

I think that partnering will be your biggest challenge here.  Can your men partner ladies while wearing pointe shoes?  Do they have a stable enough base?  The inherent asymmetry in classical ballet between the women (en pointe) and the men (who partner women en pointe) is so deeply ingrained...  I would not want to see women trying to partner men, and I'm not sure if I would want to see men lose their ability to partner in a particular dance just because they're en pointe --- in a practical sense, any serious use of men en pointe will have to involve men partnering women while using pointe shoes.  But then, that opens up new possibilities, of things the men could do while partnering the women that would use the pointe technique in a novel way --- both their own and their partners'.