he's a right wing libertarian and has been involved in some controversies. when someone says right wing extremist I think of the neo-Nazi's in Charlottesville, not some blogger with anti-authoritarian views.
Here is the version of the article I was citing, for the record: https://en.wikipedia.org/w/index.php?title=Stefan_Molyneux&o... I would recommend reading that version, rather than the rapidly "sanitized" version that omits various unfavorable media citations.