Two great belief systems are clashing here. The older liberals tend to be individualistic and meritocratic. A citizen’s job is to be activist, compassionate and egalitarian. Boomers generally think they earned their success through effort and talent.
The younger militants tend to have been influenced by the cultural Marxism that is now the lingua franca in the elite academy. Group identity is what matters. Society is a clash of oppressed and oppressor groups. People who are successful usually got that way through some form of group privilege and a legacy of oppression.
The big generational clashes generally occur over definitions of professional excellence. The older liberals generally believe that the open exchange of ideas is an intrinsic good. Older liberal journalists generally believe that objectivity is an important ideal. But for many of the militants, these restraints are merely masks for the preservation of the existing power structures. They offer legitimacy to people and structures that are illegitimate.