What is more likely? That people have become lazy/stressed as shit and live off junk food or that genetics somehow spontaneously mutated in the last century that magically made everyone fat? It’s the environment, not the genes.
Over the past decades, calories have become easier to acquire, and bodies that developed over the millions of years prior that evolved in a climate of inherent calorie deficiency would naturally become fatter.
Just because you're a thoughtless wonder who has no empathy doesn't mean that genetics isn't still the primary driver here.
Have no empathy? I literally struggled with my weight for the first 25 years of my life. Then I realized that companies sell us nutritionally devoid Frankenfood that is manufactured in a lab to make you overeat and I stopped eating that crap. That’s 90%+ of food in a supermarket. Add in some daily exercise and you’re golden.
Yet another pointless anecdote that does nothing to disprove the science.
Instead of making blanket statements that cannot possibly achieve the goals you seem to set out to achieve, it would be much more effective if you were to say something like "well, my personal experience is ... " without any pretentions that you alone hold all the answers to the problems of obesity in the world.
Your “science” is an echo chamber that confirms your beliefs and emotions. The only thing that science has proved is that CICO is a reality and Twinkies light up the reward pathway in your brain the same way that cocaine does. Show me the science that shows me that a certain set of genes are associated with a weight gain of 100lbs in our population. The closest thing you’ll find is the FTO gene which only correlates with at most 10-20 pounds if you have two copies, and still, some people with that gene are incredibly slim.