Milo Yiannopoulos; the man twitter banned got a book deal. Currently #2 on Amazon.

[FatAndFaithless]

But it's his outspoken nature and willingness to say outrageous things that makes him so popular.  It's what I think of as the "Howard Stern effect."  Someone who is willing to say things that most people refrain from (out of a sense of decorum, or decency, or simply not being a raging dickhead) are often very popular for that reason.  Especially if they don't back down when they're challenged.

It's almost as if he's determined to cloak any legitimate point he may have in as much vulgarity and vitriol as possible, and then he'll act superior when people don't like it and point to it as "PC run amok."