All the popular youtubers team up for videos. He's popular because he's a goofy goober and he's good looking.
>so he did just a few jewtricks and now even the most edgy place on the internet, 4chan, loves him
you must understand that there is more dumb right wingers than left wingers. Poopoopeepee found that 4chan is fertile ground for him and played his strengths to cater to them.