sort.Slice(people, func(i, j int) bool { return people[i].Name < people[j].Name })
people.sort(key=lambda person: person.name)
people.sort_by_key(|person| person.name); // sort_by is also an option...
Here you are asserting that unit testing is fundamental, and that not believing this is arrogance and ignorance.
I'd suggest your view that your way is "the" way, is an ironic display of arrogance, and perhaps ignorance.
And this perhaps I think is the core of much of the anti-TDD sentiment. It's not that we don't think TDD and unit tests are without their positives, it's that we don't like being told this is the one true way to write software, and if we don't do it your way we are engaging in poor engineering.