Look at the statistics. What is the percentage of women among board members of the top 100 companies? The answer isn't hard to find.
Are you saying that the situation is the way it is simply because women aren't cut out to lead companies? Are men just inherently better at business, politics, etc. ... on average? Is that your claim?
That was a clumsy straw man you put up there, too. Of course, I have said nothing about people getting positions just because they are female.
There's a macho culture in some companies where the executives go drinking together and play golf and enjoy themselves in the way that men do, for example at sports events. It's pretty difficult for women to break into that kind of culture, which has nothing to do with talent. That's probably changing, but too slowly.