Do East Asians identify with South Asians (and vice versa)?

Hi folks, full disclaimer: I'm Asian Australian, but this is the closest active sub to my identity so forgive me as I borrow your space to ask a potentially provocative question.

Do you, if you're of East Asian descent, identify with South Asians in the anglosphere? And vice versa if you're south? Do you think "Asian American" is a useful term if it groups these 2 + south-east asians together?

I'm curious because I'm East Asian and I do. But I've noticed online that it seems more and more of us don't.

It might just be because I grew up in an area where lots of EA and SA lived, with my school essentially being 50/50, but in general my reasonings are: (1) in the context of being 2nd gen+ in the anglosphere, we have way more struggles in common than not e.g. perpetual foreigner, model minority, poor media rep (2) we have a lot of cultural commonalities e.g. spicy food, strict academic-focused parents, focus on academics/career ambition/a touch of materialism and parent-pleasing (3) if you're gonna say SA is a different race, so too are a lot of South-East Asians, yet it seems E and SE are much more readily lumped together. I've seen EA dudes say Indians have more to do with Arabs than with us... which I think is ridiculous. Genetically? Maybe. Culturally? No way in a snowball's chance.

I do think including MENA and Pacific Islanders with Asians is a bridge too far, but I think South Asians have enough commonality with other Asians that we can sit under an umbrella term neatly.

Anyways, open to your guys' thoughts!