In recent years, though, political scientists questioned whether it made sense to view "left" and "right" as a single linear spectrum. Are communists more "left" than radical environmentalists? Are Leninists more "left" than RadFems? While the well known joke of leftist "splitters" caused theorists to initially focus on left-wing examples, similar questions can be asked of the right (are neoconservatives more "right" than paleocons? Is the "alt-right" more right-wing than Randians?). Instead of a single uniform "line" progressing from left to right, it has become more fashionable to think of the spectrum as "fraying" at the edges -- with many different and disparate groups occupying positions on the left and right frontiers.
This complicated the Extreme Left-Right Convergence Theory, since of course convergence of two particular extreme edges (e.g., fascists and communists) does not prove that the theory is generalizable. And ever since, political scientists have sought to demonstrate the validity of the Universal Extreme Left-Right Convergence Theory -- that every branch of left and right, at their extreme, wraps around to converge with each other extreme. For the past few decades, researchers have been hard at work seeking examples of such converence (for example, Cynthia McKinney provides the link between the Green Party and Neo-Nazis -- the "Green-Brown" alliance).
Today, a major breakthrough emerged as political scientists announced a link between two seemingly distant extremes -- the anti-colonial left and the alt-right -- in the form of Rania Khalek. Khalek had already been on the radar screens of researchers after promoting David Duke's concept of "Jewish Privilege", and with recent declarations that Trump was actually superior to Clinton on trade issues and has been a boon on deportations (heighten those contradictions!), the community is now confident she represents the convergence point between these particular extreme left and right branches.
The name for this particular left-right alignment has not been settled, though inside reports have suggested that the "Khalek-Weir Axis" is an early front-runner.
* Note: I made this up. This is satire.