From what i am reading here their position seems fairly well reasoned, nuanced and in accordance with the traditional Marxist-Leninist line on this subject. They do not commit any obvious major errors that i can see, though i would criticize their implicit assumption of the continued existence of the US as a single entity. For me this is not so clear and i do see a distinct possibility and maybe even the necessity of its balkanization, though that is not set in stone.

Either way i hope they have consulted with black and indigenous comrades when crafting this party line since this is something that impacts these groups the most and as such they are best qualified to offer insights and advice on what needs to be added/corrected and why. If we think of other successful communist parties throughout history, the Bolsheviks had the Soviet of Nationalities and similar forums where they could discuss issues related to policies that specifically impacted the minority nationalities of the Union. And the CPC too has numerous mechanisms to seek the input of the representatives of various ethnic groups when the National People’s Congress takes place.