We are in the middle of a global pandemic and an impending collapse of global economy and people are throwing tantrums trying to decide if gay furry fanart is either Evil SJW Propaganda or an Undeniable Truth of the Universe.

I guess all the "people these days complain about bullshit because they never had to face any REAL hardship in their lives" boomers were wrong all along; we will get triggered about dumb shit no matter what, to our dying breaths.

If there is one thing the internet has to re-learn with regards to headcanons, they're just that, in your head. It's nice to have them confirmed yeah, but they're just in your head and even if they're widely accepted by fans doesn't make them true. You have to learn basically to do your own thing with headcanons and accept that A: not everybody shares the same one and B: they have about as much weight as shipping pairs, basically everybody has a different one, so yours at some point by virtue of numbers is going to be not canon.
Just because something isn't canon doesn't mean you can't still make art/fanfiction/SFM shorts or whatever about it.