When we say "safe" it's a regulatory statement about _certainty_ not about any given person's activity. We know pasteurized milk is safe because the process produces a high probability of a safe product.

When we don't do that, it's called raw. From there, we don't need to investigate anything else, whether it's 1 in 100, 1 in 10, or whatever. We know that because it's unprocessed, it's unsafe.

It's always curious when people bring anecdotes to a discussion like this as if what their family did with raw milk is perfectly emulated everywhere.

Same thing happened with surgery in the early century: doctors wouldn't wash their hands because they had some base assumptions about what caused diesease.

In the end, countering these anecdotes rarely work.