You're all using the wrong word in your discussion: it's not about sexualization – it's about idealization.
When I go outside, I don't see women, who look like MK9 Jade or Kitana. But I also don't see men, who look like Scorpion or Jax.
Just like it's not that typical for women to have pitch perfect big boobies, that are not affected by gravity at all... It's not typical for men to look like they've been on a diet consisting out of chicken breast, broccoli and all the steroids on the planet their entire life.
Games, comics, movies... they're all a visual medium. There is a reason why every actor needs to get in great shape (with some of them most likely using steroids for better and quicker results). Look at Chris Hemsworth and what he did to his body to pull off a proper representation of Thor. When the steroid junkie Dwayne 'The Rock' Johnson puts on the mantle of Black Adam, he'll be towering over every other superhero actor ever (besides Lou Ferrigno).
And in the end of the day, the cold hard truth is... that games and comics are mainly there for guys. You want to look like the muscular larger than life Scorpion, you want to act like the brave badass Scorpion and you want to be together with a stunning beauty like Jade (from MK9 - not a big fan of the MK11 look).
So it's not all about showing skin or not. There are simply different ways how the general public perceives men and women. And no amount of identity politics from single individuals is going to change that, like it or not. The typical idealized state for men is big, strong and powerful. The typical idealized state for women is kind and sexy.
And with all of that being said... Here is the ACTUAL problem with women being idealized in a different way than men in a medium, which mostly caters to men: They're bound to be less successful. Think about the most popular female characters in pop culture and why they work so well: Ripley from Alien, Sarah Connor from Terminator, Lara Croft from Tomb Raider, Wonder Woman from DC comics. They all borrow a lot from badass male characters. Most of them could be replaced by a guy and it would make no difference at all (obviously looking past the story based stuff like Wonder Womans Amazonian backstory yadda yadda).