When South Asians, Southeast Asians, Central Asians, West Asians, etc. are addressing their invisibility in Asian representation or political discourse, they aren’t blaming East Asians or saying that East Asians are treated better. Come on now everyone. We have to remember that these things do have material impacts - the erasure of less visible Asians like Cambodians and Bangladeshis and Sri Lankans and Vietnamese people, etc, contributes to the fact that they don’t receive government help or aid if they need it and are entirely alienated by government structures that are supposed to provide some form of help to poor people (of course I know that under capitalism they don’t do a good job of it, but a lot of poor Asians go completely unheard because of the Model Minority Myth).
We also have to remember that Asian people tend to have cross-cultural, interethnic, religious, and national tensions and prejudices which is something very hard to combat and navigate. There is a trend of light-skinned East Asians being colorist toward dark-skinned E Asian/SE Asians/SA Asians, etc, and I’ve been a victim of that myself. There is a trend of S Asians hating E Asians, particularly a rivalry between Indian nationalists and Chinese nationalists fighting over the Aksai Chin province of Kashimir. The Gulf States oppress S Asian laborers and African migrants. Japanese imperialism ravaged China, the Philippines, Korea (which was just called “Korea” at the time). And so on.