It most likely is, for many people. In that it involves the adoption of a false self-belief via one's peers, from within the framework of the gender identity belief system. An interesting sociological phenomenon.

We can also look at the rise in people adopting 'they/them' and similar unusual personal pronouns as a measure of the rise in number of acolytes of that belief system.

It's a denial of material reality, replaced with a sort of spiritual essence of 'woman' or 'man' or some ill-defined in-between.