I think people see what they want to see.
First Supergirl is a DC property, so if you want to discuss how she is being portrayed - you can't use Marvel as an example of desexualization. And if the conversation is about choices DC is making in how they portray women - I think you'd also have to put on some pretty big blindfolds to ignore how Harley Quinn was hyper sexualized in Suicide Squad, especially with her striptease scenes in that first film that were completely unnecessary.
I think you also have to put on some pretty big blindfolds to ignore the quantity of sexualization.
Like make a tally of how many times Supergirl wore a skirt vs not. She was on TV for 6 Seasons in her recent depiction. 126 Episodes. I won't even bother tallying up crossovers. Season 5 Episode 1 she gets a full bodysuit. So here are the numbers
Skirt: 87 Episodes
Full Bodysuit: 39 Episodes
The Flash movie is also about a 'multiverse' so to speak. For reference... it has multiple Flashes and multiple Batmans... and one Supergirl we know of. If the debate is how they are desexualizing supergirl then you'd have to pretend they planned on continuing with this Supergirl permanently.
I am guessing most of us here know that James Gunn took over the DC Film projects and effectively ended the Snyder verse, which would mean - this is probably the only time we are seeing THIS version of Supergirl.
HELL James Gunn has even announced SUPERGIRL IS GETTING HER OWN MOVIE AND IT ISN'T THE ONE FROM THE FLASH FILM
So what is this conversation really about? That Thor showed some ass in his last film?
Or that a lot of guys here can't handle 40 Depictions of Supergirl in a bodysuit VS 88 depictions of her in a skirt. (Not including cross over episodes)
Whats even more wild is a bunch of people who are angry about the new Flash Supergirl probably didn't even like the TV Supergirl when it came out. Because maybe I am wrong but I remember the black pantyhose being very frowned upon. I am not eager enough to search through the old comment threads here regarding that situation, but I think people are just looking for a reason to be angry.
Considering that the Batgirl film got dusted - I personally think we should all have a moment of gratitude and just be happy we will be able to have the choice to see the Flash movie. Because it could have simply taken a similar route especially considering its lead actor went nuts and did everything in his power to end his career publicly