Sure, but this isn't just 'men being bad'.

If you take away the mans benefits of a traditional relationship what reason is there for a man to invest in one today? Certainly not the benefits that have existed for the previous hundreds(thousands) of years while our species evolved.

Should men have had those benefits? Perhaps not of course. Doesn't change the fact that they did exist and no longer do. (it's not as if this was a one way street)

There's nothing 'evil' or 'wrong' about identifying that things which previously existed no longer do.

Perhaps there's no acknowledgement of obligation/consequence because none exists anymore, whether that's a good or bad thing is a separate argument.

Here's the equality you wanted. Time to dogfood it.