Maybe if we didn't teach kids that pink is to be avoided because "it's for girls!!!!1111", there wouldn't be a problem with the colour at all. A male Pink might be a good way to do that
I still think a better idea would be to retire pink and maybe have a Pink Ranger only once every five years for anniversary series. It seems female Yellow and Blue figures sell better than Pinks ...
But, in many cases it really is for girls. I mean, I have a pink button-up, which btw always gets compliments and looks from the ladies. hehe
I feel like if you raised a kid without seeing colors until he/she was 10, and you asked them which is a boy/girl color..for girls they'd probably lean towards Pink.
I think there is a study on this though, something with babies first seeing pink or something.
Pink accents on a Sentai suit I can see being a first step, but that's it. Accents as in thin Change Mermaid lines, not patches, or pink shoulder pads.