“Gender dysphoria exists, people experience these thoughts therefore it exists,”
People have thoughts, some of which converge in a fervent desire to gain a treatment involving body changes. I think that’s part of the problem.
It seems to me that the current situation has moved to one where the “diagnosis” hangs upon the desire for an invasive treatment, or alternatively a hatred of one’s body or attributes.
I suspect, if you burrowed into those thoughts you claim people are experiencing, they would be hugely varied and would not genuinely fall into any cohesive group.
It could perhaps be argued that the diagnosis does exist, but that is being massively over-diagnosed, but I think, as others have commented, the whole thing hangs upon the very dubious framework of the concept of having a “gender identity”, as stated in the original linked article.
“The addition of Gender Dysphoria to the symptom pool is fed by the concept of gender identity, an unprovable, metaphysical belief that we all have an innate sense of our ‘gender’. That our gender exists outside of our physical bodies.”