It’s a fascinating read and you need to read all 4 parts!
Felix believes in a unified gender theory as I do. Nature does not always produce an individual whose core gender identity is aligned with their birth sex and these children are often conditioned to fit in by well-meaning parents and teachers. In the end, however, they are who they are inside. Some rebel early and some try to conform but their gender core does not budge one iota.
Transgender people therefore need to do to what they must to respect and celebrate their own sense of internal gender which can include but not necessarily lead to transition.
The link to Felix’s well written essay can be found here.