But to play devils advocate:
There has been a women's Tour de France for a while. It existed between 1984 and 2009. It struggled financially that whole time and was never profitable to the UCI. They canceled it in 2009 and brought it back in 2014 through 2021 as a single day event in Paris on the same days as the men's final day.
The UCI was been exploring bringing back a multi-stage women's event for at least the past several years but they had been unable to nail down a title sponsor. Apparently Skoda (the primary men's sponsor) was in early negotiations to sponsor it in 2020, for the 2021 season but then dropped out because of COVID uncertainty.
The break last year finally came because of Zwift (who financially performed well during Covid) offered to sponsor the event as a title sponsor. NBC did a lot to support and promote them as well. So we are seeing progress.
There was a lot of criticism around it only being 8 stages compared to the 24 of the mens, but most of the women actually said 8 stages was plenty because that is larger than any of their other tours (I think tied with Giro d'italia).
Progress is happening is my point.
With that being said, yes there is significant sexism still prominent in all sports, and cycling too.
The UCI is following the money, and to their credit they have been honest about that. They have routinely said, there isn't enough money in the women's sports and that's why they don't pursue it.
What we need is for the UCI to recognize the potential in women's cycling and to invest in it, knowing it might not be immediately profitable, but that over time it will gain popularity like the men's events and become profitable for them. Luckily Zwift seems to be willing to take this role for now. Time will tell. But the good news is that TdF Femmes (women's) is back for 2023. So maybe we at the beginning of what will eventually lead to a happy ending.