If you wish to understand the leftist perspective on the US beyond the "tankies just think everything the US does is automatically bad", I strongly recommend that you read Killing Hope and The Jakarta Method. Arming and supporting fascists to slaughter and subjugate everything that looked even vaguely socialist or just wanted to be unaligned during the Cold War has been business as usual for many decades and Ukraine is just a bullet point in a very long and bloody list. Fair warning: the stuff in those books can make you extremely angry. I legit had to put Killing Hope down and go do something else after going through the Guatemala chapter to shake off the utter disgust.