As Xenophile said, the feminists I speak to think that MRAs are laughable.
I feel that they are free to spend their time as they wish - albeit I'd prefer that they didn't spend it spreading lies and whining.
I've only seen the trailers, and didn't see any feminists saying Mens rights shouldn't exist - I did see them suggesting that some of these men need to grow up.
Xenophiles last point on her rebuttal needs repeating here:
And despite all of this, getting pregnant in the US is still over four times more dangerous than going to work in the US
You can list combat deaths (ignoring civilian deaths which are roughly equal), murders (overwhelmingly committed by men) - but let us never forget that women risk their lives so those men can exist to spout their misleading stats, and there's no alternative to that.