Why woman can't be the Buddha?

Actually, I don't want to answer like below because the feminists have resisted me before on my reply of some topic like this. I never want to attack anyone, buddha as well.
The contex of bahudhatukasutta is about the best no.1 winner (cakka-vatti/buddha/arahanta/etc.,) vs the ordinary (the follower). So, we have to look about the qualification of the best no.1 winner.
Remember: Buddhism never against female to be the best, if everything (everything is everything, everything is not something) of them can compare to the male. But by the science, history, environment, etc., it is quite harder than the male.

So, what is the qualification of the best no.1 winner?

1. The best physical body.
2. The best I.Q.
3. The best E.Q.
4. The best M.Q.
5. The best Teacher.
6. The best practice.
7. The best effort.
8. The best environment.
9. Etc.

Then answer me for these questions to get the answer of this topic:

Don't let me answer it by myself, because I can be killed by the feminists.

1. On menstrual period of every month, does a female has the best physical body compare to the other period of month?
2. On menstrual period of every month, does a female has the best I.Q. compare to the other period of month?
3. On menstrual period of every month, does a female has the best E.Q. compare to the other period of month?
4. On menstrual period of every month, does a female has the best M.Q. compare to the other period of month?
5. On menstrual period of every month, does a female has the best Teacher compare to the other period of month?
6. On menstrual period of every month, does a female has the best practice compare to the other period of month?
7. On menstrual period of every month, does a female has the best effort compare to the other period of month?
8. On menstrual period of every month, does a female has the best environment compare to the other period of month?
9. How many time of a life, that the male has bloody period?
10. How are the patients feeling when they lost their nutriment for bloody lesion? While this situation, how are their I.Q., E.Q., M.Q., effort, etc.?
11. How are the patients feeling when they stomachache by the bloody intestine? While this situation, how are their I.Q., E.Q., M.Q., effort, etc.?
12. How the doctors, psychiatrist, etc., answer my question?
13. Why Olympic separates the female competition from the male competition?
14. Etc.

Remember: Buddhism never against female to be the best, if everything (everything is everything, everything is not something) of them can compare to the male. But by the science, history, environment, etc., it is quite harder than the male.

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Actually, it is from tipitaka, Sutta. Ma. U. Bahudhātukasuttaṃ , not atthakatha:

It is impossible that a woman should be the Universal Monarch It is possible that a man should be the Universal Monarch.

It is from Mahidol University Application Budsir The Pali Tipitaka in Roman Character Volume 20 page 36-37.
http://www.84000.org/tipitaka/read/roman_read.php?B=20&A=738

Click here for these versions of this sutta: Siamrattha(THAI), Mahaculalonkorn University, Atthakatha Pali, and Thai translation of Atthakatha by Mahamakut University.