He is a strong denier of Russian interference in the 2016 election, has been vocal in his support for Assad, and denied, not only China's genocide on Uyghurs, but that the Uyghur population even exists.

There's an article on The Gray Zone by the center for right wing analysis here https://www.radicalrightanalysis.com/2020/09/25/1-6-2/

Browsing through Alex Rubinstein's Twitter it's clear that his argument basically boils down to "the west has done shitty things, so they're not allowed to say that Putin is bad for invading Ukraine"

This article is not meant to convince anyone that Putin is the good guy. It's meant to make readers doubt whether they're supporting Nazis by supporting sanctions as response to Putin's invasion - shifting the focus from the fact that Putin is indiscriminately bombing civilians.

It's perfect execution of the alt-right propaganda playbook - meant to induce apathy, because that's all that is needed for Putin to succeed with his imperialistic dreams.