I’m not saying they act evilly, but Facebook is literally controlled by one person who cannot be outvoted by every other owner. And Google is controlled by two as well [0].
[0] https://fortune.com/2019/12/05/page-and-brin-google-control/
Nobody is thinking society is just big tech people. There are a lot of people who agree with tech's decision to cut off coup enablers.
Of course the key characteristic of secret cabals is that they are secret.
While I know of no evidence for secret cabals of big tech people, having individual capable of making unaccountable decisions is a different bad thing than secret cabals.
And I responding to someone saying these were big organizations with lots of decision makers. And that’s false for Facebook and google, since they have power concentrated.