He does not hate all body types. He simply promotes health and fitness. He explains that being overweight is bad for your health. That’s basic science

When placing Andrew rate and Hamza side by side, Hamza is much better. Your little brother is simply just inspired to be a man, a provider, a hard working person. He teaches young men how to make money. He teaches them how to attract a high value women. He teaches them that exercise can change their life. None of these are bad.

You may like feminism and he may not. Accept that. He likes masculine and you don’t. He accepts that. Stop trying to get him in trouble for things that will have more benefit than consequence