There are and always have been, some people with genuine gender dysmorphia - I have worked with a couple - but the number of people, especially young ones, identifying as the opposite gender (or even none at all) is way out of proportion presently.
The gender fluidity issues (whilst absolutely genuine for some) seem to be mired in fashionable lifestyle choices and the desires of easily influenced young minds to want to mimic the fashion/music/social media 'stars' they are bombarded with daily.