Of course, plenty of Chomsky’s opponents have their own rhetorical and moral problems. As an undergraduate I watched Chomsky debate Alan Dershowitz, and Dershowitz put on one of the most disrespectful (of Chomsky and the audience) and academically dishonest performances I have ever seen.
It is unfortunate that many outspoken US detractors lose their voices once Russia or others commit clear atrocities, or just keep repeating non sequiturs about the US. It makes it harder to trust their earlier arguments and disentangle principle from reflexive anti-Americanism.
(It is likewise very damaging when the American president/military/intelligence undertakes aggressive wars, arms/trains paramilitaries in authoritarian countries, supplies weapons to murderous dictators, etc., first because those are bad in themselves, but also because they undermine American international legitimacy in cases where projection of American power can actually defend freedom and peace.)
It is no wonder he's so depressed about the future, the belief that anyone with power is allied with everyone else with power on every conceivable issue is as good as forecasting permanent defeat. For example he writes off the end of the Vietnam war as something that happened when business interests turned against it, not really thinking about the fact that business interests are not completely inaccessible to normal people and in fact are normal people. They're just not academics.
