I thought this line of thinking had been debunked. Each sport has unique physical demands; excelling in these unique areas aids athletes. Drivers no exception. Apples to oranges to compare fitness across sporting categories, but top series drivers have physical demands and routines no different from any other professional league.
Therein gender/bio discrepancies will remain. General population obsesses over sports, stupidly. Those athletes only represent some tiny fraction of the population. They are the outliers in certain physical parameters which allowed them to rise through the ranks of feeder series. 99.999% of men can't compete in professional men's sports, either. Take a similar figure to the general population. Nearly all people can't compete in sports, so if anything it's what might be called ablist.
Some glass ceiling effects are to blame. I think sports generally is probably a lot of people being dicks to each other constantly. That climate combined with specific bigotries around sex and gender would present harsh circumstances and toxic environments.
But physical limits also exist. Fewer 6.5' tall women to pool from to allow more equal representation amongst NBA centers, for example.