It would be one thing to make demands on the basis of unfair treatment with regards to universal principles. It's another thing to make demands merely on the basis of identity. People should be treated with fairly because of merit and the "content of their character." People should not be treated with because of their age, their sex, who they are attracted to, or their skin color.
What we should also recognize in 2018, is that tribalism itself is toxic. Tribalism can also be attached to life choices, political stances, and subculture, and those sorts of tribalism can be toxic to the same order of magnitude as older forms, such as those based on ethnicity. Tribalistic toxicity stemming from immutable characteristics is arguably worse, because people are trapped on a side. This is why identity politics should be avoided in general.
A politics that would be humane should be about principles and policy, not identity.
This is also why the association of principles like Free Speech with particular identities, even identities of choice, is also particularly corrosive.