I despise seeing these sorts of people all over my newsfeed every single day, it seems to be the Facebook famous more than anything, a few of the Tumblr famous people are actually nice people who post decent stuff to get so many followers, whereas on Facebook it's just pointless arguments and 'banter' which causes even more trouble.
I completely agree with you, WHY are people obessed with these Facebook famous people? Their followers act like they're God when in reality they're cretinous creatures. I've seen them in Manchester, and people surround them! Why, oh why? They're nothing special.
I had the displeasure of meeting the Jake McManus featured in OP's video and all I can is he's an egocentric c*nt. The funny thing is these people are going to amount to nothing as they let their 'fame' take over their lives, quite a large majority of them even stopped education because they got abused/harassed. Where are they going to be in 5 or 10 years time when everyone has moved on to University and work and has forgot about them? Absolutely nowhere.