Politically-engaged Redditors tend to be more toxic – even in non-political subreddits::A new study links partisan activity on the Internet to widespread online toxicity, revealing that politically-engaged users exhibit uncivil behavior even in non-political discussions. The findings are based on an analysis of hundreds of millions of comments from over 6.3 million Reddit users.
But where is the basis for defining it that way?
I think a more clear and commonly excepted interpretation would be basically more collectivist vs more individualistic. The issue with that for some people is that would make Nazism left wing, and nobody wants the bad guys on their side.
It matches the historical usage of the terms. As far as I can tell the definition has barely changed in modern times; a lot of people have just tried to redefine them based on their own misunderstanding.