I'm sure you can find many women who could handle themselves physically. If you watched the 2000 Olympics you would have seen many strong women representing our cause. We would definatly have far less female marines but there would be no doubt that they could do their job. I know many women who are not even that built who could pass the male version of the physical fitness test. The only difference is your run time for 3 miles has to be under 18 minutes for men as apposed to 21 minutes for females.
Men also do pull-ups.
In place of this women do the flexed arm hang for 70 seconds. This involves hanging in a pull up position where time does not stop until your arms are completely straight. What is even worse is the fact that many women can't even pass the lowered standards. No wonder we can't get any respect. Social evolution is a slow process.