The possibility that left-wing cultural politics can dissolve into a (metaphorical) circular firing squad is not some bizarre perversion of “discriminating tolerance” but is a logical extension of it. Under the paradigm of “discriminating tolerance,” only “the Left” is allowed freedom of expression, which causes this kind of tolerance to be highly unstable in practice (and likely in theory, too). After all, who defines what “the Left” is? For a broad-minded democratic politics, who defines the Left remains an interesting intellectual exercise, but the stakes are far more immediate for practitioners of “discriminating tolerance.” For them, defining the Left and the Right determines not just who has political power but who is even allowed to express political opinions.
That’s great, but why even mention that? The facts and rules of the sciences are essentially set, as are many of the pathways required to understand and then apply them. Obviously. Those four cousins faced many issues related to attaining their qualifications that were not reasonable however. Perhaps they didn’t notice, but they’d be in a tiny minority if so. In the last 40 years, we’ve been trying to deal with those issues. This sounds like a continuation of that. So what is the issue? Doing nothing different is not an option. Do you not understand that?