Bravo! The fact that this paper - unpublished as far as I can see, or at least not peer-reviewed - has lots of great graphs and equations is lovely, but I doubt that you 'chose it at random'. I actually took the liberty of looking at some more recent of his papers, which start to show which way his mind was going? Here's one from the same Munich repository in January this year, where he mentions 'apartheid' about six times and has very little 'maths'.

https://mpra.ub.uni-muenchen.de/76165/

But that's splitting hairs. What I will contest is the fact that you're effectively one of his colleagues with more than an axe to grind, rather a long sword?

http://www.seri-sa.org/index.php/23-about-us/who/395-josh-budlender

Maybe you'd like to comment rather on your mate's apparent predilection for turning this country into Zim 2.0? I imagine we won't find any papers on that, will we?!