Wait... Is the anwser responsibility again?

I was just wondering about the "male birth control" discussion, and it is the least understandable feminist talking point out there.
What would women get from men having a hormonal birth control? I mean, they do have a birth control that allows them to take it raw as often as they want, and they can always just use a rubber instead. Either way, women have complete knowledge about the rubber, and a total control over the pill.

And then it hit me.
They cannot claim lack of information. The only reason they want the male hormonal pill is so it's not their fault for getting preggars "on accident".

Or am I wrong? Please, tell me how wrong I am, and explain why it's an issue in the first place.