I notice there have been no attempts so far to cancel Hagrid - nor were there any attempts to trans him before, which is odd. The character canonically does keep the fragments of his broken wand in a pink umbrella, after all. That would have seemed like a golden invitation for the gender fandom to "trans head canon" Hagrid, to me.
But I suppose Hagrid isn't sexy enough. I've noticed the Tumblr kiddos prefer to trans the likes of Harry, Luna, Draco, and Ginny in their art.
(Not Hermione, oddly enough . . . I wonder why that is?)