The idiom “jumping the shark” is generally used to refer to some misguided attempt to add new life to something no longer popular. Involving Zen with identity politics is one such example of jumping the shark Zen. Let me back up and say, this is not an overt involvement but a quiet involvement; one that almost goes undetected.
Identity politics is one of those things that's easy to see but hard to define. One writer defined it as the struggle for political "voice" by marginalized groups in society. In other words, I want control over the discourse about who I am and what I need from society to make me happy. Even deeper, I don't want you to label me as a psychiatric disorder!
Today, Zen, including Buddhism in general, are facing an influx of people who are attached to identity politics; who feel that they no longer have a voice but hope to find a voice for their identity in Zen or Buddhism. In answer to this wish, I can only say that Zen will not give you a voice for your identity but will rather take it away from you!
Whether it's gender or sexuality Buddhism doesn't want us to identify with the five aggregates (skandhas) of physicality, feeling, perception, karmic formations, or consciousness. This much is very clear in Buddhism or should be. These aggregates, by the way, are conditioned. Attachment to them means being swept away by the flood of samsara.
We humans suffer from a bad case of mistaken identity, identifying with what is conditioned rather than seeing, firsthand, what is unconditioned, that is, nirvana. What is unconditioned is pure spirit or Mind; what is conditioned is thought which is congealed spirit. But few understand this. More people, in fact, disbelieve this. As we can see, teaching Buddhism or Zen is an uphill battle. It is difficult to give up one's identification with a figment of the imagination. Incidentally, this is where “power” kicks in (a fight for control over the discourse).
Those misled by identity politics need power. Who they believe they are, are also convinced they need to control others for fear others will control them. One constantly feels bereft of power and status. They think of themselves as victims.
Buddhism pushes its students to get past identification with a false self comprising the five aggregates. The student must regard the five aggregates as not their self. In the Paṭisambhidāmagga, to help the student get past the five aggregates, it says:
See the five aggregates as impermanent, as painful, as a disease, a boil, a dart, a calamity, an affliction, as alien, as disingegrating, as a plague, a disaster, a terror, a menace, as fickle, perishable, unenduring, as not protection, no shelter, no refuge, as empty, vain, void, not self, as a danger, as subject to change, as having no core, as the root of calamity, as murderous, as due to be annihilated, as subject to cankers, as formed, as Mara's bait, as connected with the idea of birth, connected with the idea of aging, connected with the idea of illness, connected with the idea of death, connected with the idea of sorrow, connected with the idea of lamentation, connected with the idea of despair, connected with the idea of defilement.
There are a few these days in the circle of Zen or Buddhism who will tell the student that these aggregates are evil and that the reason they are not our self should be obvious. In fact, it is our very self (paccatta) which realizes nirvana according to the Buddhist canon.