Building muscle is hard for some folks and it takes time. The biggest dudes at most gyms are the nicest folks. The "big guys" that make fun of people... Get eaten for breakfast by the real gym kings. You don't get huge by being full of yourself, you get that way through a ton of hard work and learning to humble yourself.

I knew a dude that was a pro wrestler, huge AF. Had the world's biggest comic collection in his basement, total sweetheart. He played a heel to further add insult to injury lol