If you're American, and you think of yourself as left, and you're anti-liberal, you have been brainwashed by Russian anti-democratic propaganda. The Russian trolls who brainwashed you used the Russian meaning of the word "liberal" (capitalism) to character-assassinate American liberals, or "social justice warriors," many of whom are social democrats, socialists, and communists, which is why Republican capitalism-fetishists want to kill liberals.
There's now a private subreddit to follow him, r/enougholiverspam, which should be going public soon. One thing to note is that anti-Trump books aren't his only grift. He's also the incel author of Why Men and Women Can't be Friends and mod of /r/WMAWCBF. There he posts under his main account and alts. Whole network of alts. Oliver is a real specimen.