For the same reason men should not play in women's sports, women should not fill roles that are better suited for men like the presidency.
For the past three years I've been using a 24/7 roadside mobile tire service that is owned and operated by a woman. I initially thought, "what a great thing to see a woman in this line of work." Angela told me that she had been changing tires with her dad for years until she branched out on her own. This year she finally purchased a mobile that will save time from having to go fetch tires from the shop.
One night while working a side hustle, the front tire on the driver's side went flat. No problem-o. I'll just call up Angela to get out here and change the tire. It was a good thing that I was with a friend at a restaurant looking over client orders. I could wait comfortably for Angela to show up. WRONG. Two hours passed and Angela still wasn't there. She informed me that she was waiting for her sister to come over to watch her one year old. I thought, "okay, I can be patient. Only one more hour before this place closes anyways."
Angela didn't get there until 1 in the morning. I had been waiting in my car for hours by then. What really irritated me was how she kept stringing me along. "I'll be there in 20 minutes...10 minutes..." when in reality she was nowhere on her way. Needless to say, I confronted Angela about her dishonesty. We got into it as she kept trying to justify her lateness due to her kid, who was in a car seat in the mobile truck. I told her very bluntly that she was very unprofessional . First of all, I would've appreciated if she had just cancelled the job due to a family-related issue. Then I would've just found someone else.
I've had this problem with women before.