Agreed. I haven't eaten red or white meat for over 5 years now. I'm not strict about animal oils / fats tainting my food intake. I also still consume eggs/dairy/fish. The difference being I consume very little of those things. I may eat fish 2 times per week at the most. I eat maybe 2-4 eggs per week (both cooked and used as an ingredient). Dairy I don't consume other than as an ingredient or the very occasional dessert (ice cream).

I've only improved my health during that time. And as you get older it's interesting to see peers continue to overconsume and pay the price accordingly.

We don't need to be vegans to make a significant improvement on our planet. But what's considered "normal" from a dietary standpoint today is nowhere near a truly healthful diet nor is it treading lightly on our ecosystem.