I actually really enjoyed reading this. :)

I love how you used it to help explain the rise of the alt-right on the internet and why we, the left, seem to be two steps behind them.

My only really critique is that there might be reasons why we don'twant to embrace opportunism?
I am not as clued up about the far-right online but the National Socialists in Germany were far from sincere at times. And it served them well. But they had a far less difficult task than ours and simply wanted to be voted into power and to run a planned economy and adhere to their beliefs in purity.
Whereas as anarchists we want to actually see a change from the bottom up? So if people support us bc they don't understand the depth of some of our views (bc they assumed it was a joke) then it might have a more meaningful impact on the implementation of our vision.