Wow. Just wow.
The female engineers I've met that work for large corporations (one of them Intel) are just as talented/smart as their male counterparts.
I suspect they are an exception to the rule. I would be willing to bet that 85% of the women at Google are dead weight, and close to 60% of the men are. I am NOT saying that women cannot be just as valuable or smart as the men. I am saying that for the most part they are not as valuable.
Similarly:
Some women can beat up men in a fair fight. Most men will beat up a woman in a fair fight. I would not pick a fight with UFC fighters (men or women). Put 1000 random men in a room to fight with with 1000 random women and a lot more men will be walking out alive. Orders of magnitude greater. Same with doing high end math, or driving in traffic.