Rant, might not make sense at some parts.
To be honest, I loving hate it, and I frequent Tumblr. People who identify as anything other than ale or female or identify as "genderfluid" are so loving entitled and I hate it. What makes it worse is that they clearly look like their biological love and someone calls them the pronouns designated to said love when they identify otherwise get offended. It's loving idiotic as stuff and makes me want to hit someone. And the real kicker is the genderfluid stuff people do is literally the most idiotic thing anyone can do, like make up your loving mind. And while these reasons that humanity is doomed heavily resides in tumblr, I would not be surprised if I found one that doesn't use tumblr because the human race is full of idiots.
But if they identify as a static gender that exists, it's cool.