That particular statement wasn’t directed at Grayox specifically, it was more about a particular subset self-identified communists on the internet, including (some of?) the lemmy.ml admins, and many users of lemmygrad and hexbear. The ones that correctly identify that the USA is bad, but then prop up the likes of the Soviet Union, the PRC, the DPRK, and even Russia (which doesn’t even claim to be communist) as paragons of good, when often times they’re worse than the US.
Capital. A Capitol is the building where the legislature presides.