it's just not a good faith comment. I did a few minutes of digging into their main claim, that a website called responsiblestatecraft.org is some kind of foreign-funded anti-American think-tank and found absolutely zero evidence of this

that site itself is a product of the Quincy Institute for Responsible Statecraft which began life with funding from both Koch and Soros Foundations [0] along with donations from other fairly large and common American foundations like the Ford Foundation and the Carnegie Corporation. so for one, you have money coming from someone who survived the Holocaust that's funding a supposedly anti-Semitic site. and for two, you don't get across-the-board grants from extremely well-funded and tightly controlled givers like these without both connections within the American political establishment and the ability to stand up to donor audits, both things that a weak-on-soft-power nation state would be incapable of pulling off

so I don't think you're going to convince them with actual evidence. when you've been propagandized to your entire life and stake your entire identity around some popular belief even the mildest criticism will feel like a deep attack. it's the same for any other dogmatist, whether it's a Patriot's fan or a religious zealot

[0] https://en.wikipedia.org/wiki/Quincy_Institute_for_Responsib...