Not to advance a position either way here but I will point out that Australia is
not a counter example to the thesis that "bullying is ingrained in UK culture".
Canadian, Australian, and other Commonwealth colonies are heavily influenced in education practices by their UK roots.
Nordic countries and Japan make for better counter examples.
One of the best counter examples to the assertion that bullying and anger is ingrained in child rearing across the world might be:
How Inuit Parents Teach Kids To Control Their Anger
https://www.npr.org/sections/goatsandsoda/2019/03/13/6855333...
recently discussed here on HN.