Bigotry - top contender for the 2016 most watered down word in the English language award.
I think that the licence is perfectly reasonable.
Wow! I guess writing scientific software doesn't prevent you from being a profoundly ignorant twat. Bigotry is an understatement. Have a nice day, Adolf!
Even more bizarre - http://www.treefinder.de/downloads.html - the author seems incredibly butthurt that he hasn't been made rich off this piece of software (at least, that's the vibe I'm getting)
If this is bigotry, then what would we call the Russian and Iranian sanctions?
I would suggest researching the definition of the word before using it.
As far as I'm aware the software is free, it's in the developers right to choose who he/she awards his software to.
We see a lot of women-only or ethnic-minority only projects in tech, yet nobody is calling those bigotries.
Having said all this, I don't agree with the developer's world views, however this is like free speech, you have to allow it, wether you like it or not.