Actually he describes stuff that random persons on twitter write as fringe opinions.
Ask a random person on the street what the definition of microaggressions is... Surely 90+% will not be able to answer this, regardless if they are part of a minority or not. This is elitist semantics coming from student and activist circles who are out of touch with many peoples's day to day struggles.
What should that even be: "zero tolerance against microaggressions"? As a math lecturer, I'd just roll my eyes if I got such instructions.
So since you misrepresent the content of the article so thoroughly without even having read it (!) and instead let your emotions take care of the argument ("I'm not gonna read this piece of crap since I have a different opinion")...
Could it be that you are one of these people with fringe opinions? :D
I like your way of thought. We really have to give nature back in the future after everything we received.