Growth, and positive interaction with the rest of the world?

Balance that against the positive ego effects of thinking that you pulled yourself up by your bootstraps and built the log cabin you were born in.

Parent post was right for a good number of people.

And the rest of us are well within our rights to not tolerate those people.

Is such growth and positive interaction only possible if a White / Cis / Male submits himself to this particular narrative, or is there room to debate and disagree?

Absolutely there is space for debate and disagreement - the problem is generally in getting acknowledgement that there are other view points with which to engage.

A considered opinion deserves respect if not agreement. One formed on assumption, in a vacuum is more difficult to accept.