Men’s tennis massively subsidises women’s tennis vs the grand slams allocating equal prize money.
The reality is that tennis is entertainment and the vast majority of people want to see the men play (including women). Look how the court’s empty of spectators for the women’s matches (except finals).
The real evidence can be seen in the black market ticket prices for the later rounds when the sexes have their own days:
Centre Court Debenture Tickets
Gentlemen's Singles Semi-Finals
Fri 12th July 2024
CENTRE COURT
£5950(excl. VAT)
Centre Court Debenture Tickets
Ladies' Singles Semi-Finals
Thu 11th July 2024
CENTRE COURT
£1875(excl. VAT)
The men’s tickets command 3x the price.
I am not sure about Queens and it does sound a weak excuse but they women don’t have a right to a tournament there. Maybe they don’t have the same number of courts as some of the others that run both tournaments simultaneously, or the number of groundspeople.