First of all, main and only principal of weightloss is calorie deficit. There is no other nonsurgical way to lose weight rather than from calorie deficit.

Now, keto is unreasonable in weightloss because it’s a low-carb diet. Lack of carbs (primary source of energy for humans) makes weightloss harder because someone on keto would feel less energetic for quite some time due to at least adaptation to said metabolic proccesses. In general, forcing organism to get energy from some less efficient and not-quite-as-good metabolic transformation is something that comes from a belief rather than reason.

I don’t mean that one can’t lose weight on keto. But it does increase discomfort during weightloss which increases the chances of giving up on it.

other than starving yourself and exercising 24/7 is unacceptable.

That’s not how losing weight works. You don’t need to starve yourself, you need to stay in calorie deficit (doesn’t equal starving and you may actually feel less starved than usually if you start adding better filling food to your diet). You don’t need to workout 24/7 (generally working out is not neccessary at all), doing proper strength training will help with losing weight (because building new muscles requires a lot on energy which increases BMR) and with looking better overall. But proper strength training doesn’t require you to workout 24/7, you just need like 50 minutes 4 times a week in order to hit most of the muscle groups twice (i.e. doing upper/lower split) to keep stimulus going (which start the building of new muscle fibers which increases BMR). And strength training is nothing like weightloss show nonsense — which is «doing a gazillion reps of light weights while sweating a pool and being out of breath with pain in your muscles and having to deal with devastating recovery» — you need to lift weights with consistent techique in 3-6 rep range, 2 sets and just be close to failure during last rep of each set. It will get you needed levels of muscle stimulus, you will not experience pain while working out, it will not make you uncomfortably wet from sweating and recovery will be fast and fine.

most fat people have lost and regained weight tons of times

Because they tried to lose weight like it’s goalpost via starving and working out 24/7 rather than building sustainable habits in eating and working out that will make you lose weight and stay in healthy weight range as an effect. When you don’t have those habits, you get fat.

when they see someone losing weight without starving themselves and hitting the gym, they get jealous.

Maybe they do. But that doesn’t really matter. A huge percent of people that lost weight with drugs like Ozempic also regain their weight in a span of two years after they stop taking it. Because none of these people actually builded healthy habits that lead to weightloss, they just took a drug that mimics a hormone of “feeling full”. And as they don’t have those habits but still remember the eating habits that they had before GLP-1 (and while taking the drug, there is no conscious change happening, so habits don’t really change, you just stop overeating due to GLP-1), they are likely to get fat again.

Weightloss is really not that hard if you don’t fall into social media bullshit and keep things rational and somewhat up to current science. People often fall for keto/carnivore/vegan¹/highreps/highcardio and other unreasonable ways to lose weight. imo the hard part is to stay consistent in calorie tracking but only for some time, after that it’s just starts being some sort of second nature and you start to eyeball stuff for calories without thinking about it.

¹Being vegan is reasonable from moral standpoint but doesn’t mean much in weightloss.

He figured out that looks are insanely important in society (which is true) and tries to get maximum out of his potential in looks. I mean, he might actually fuck everything up as “experimenting” goes (i mean, using methamphetamine combined with steroids while also lightly hitting your face with a hammer is not usually called “experimenting”, it’s closer to “being a junkie”). He is a bad influence due to his “methods” for sure but figuring out that human society has ridicuolosly deep roots in lookism is not something that indicates “horrors that a child experienced”. You just have to pay a little bit of attention to surroundings during e.g. school, especially during high school and you can easily figure out that absolute most of social success comes from good looks (which comes from particular bone structure of your skull).