Read The War Against Boys by Christina Hoff Sommers. She wrote that bock over 10 years ago and has tons of examples and references.

I have no academic credentials to discredit her writing, and I probably won't read it because I'm not a misguided MRA, but my bullshit alarms are ringing wildly from having read the synopsis. The whole thing seems to be based around a preconceived notion of what a 'boy' should be, and that's flawed in itself.