Slutty costumes are getting ridiculous
why do you think these costumes are ridiculous?
It's just going too far.
You seem pretty frustrated by people's costumes. As long as they're happy, there's no reason to judge another person's Halloween costume.
There are so many other ways to be "sexy." These costumes are just awkward and outdated.
People are free to wear whatever costume they want. So are you. You should respect their freedom instead overthinking about it.