Oh I can agree that using it as an excuse to consider some countries lesser is straight up garbage. Your experience with reactionaries sounds infuriating so I can see where you're coming from.

While I was in XXX I had locals advise me not even to trust the bottled water and to only stick with beer since it's been guaranteed to be boiled lol.

Although in all honesty I don't think I ever fully recovered and it was years ago. I've had a lot of dietary issues ever since I got back that have never gone away. Like, food allergies that only came about directly afterwards. It's nuts.