I'm assuming they are referring to "traditional old Asian culture" aka the combination of old patriarchal/sexist beliefs, a toxic workplace/exploitation culture, society-over-individual attitudes, and that topped up with a healthy dose of racism to xenophobia (depending on the country).

I mean, some of this is rich to talk about given I'm European and most Western countries share a lot of these traits, but from what I hear(d) from friends from Asia, it's the "the needs of the society/family are more important than those of the individual" that they find the worst compared to the very individualist attitudes of Western countries.