It’s not about forcing Mandarin being bad, it’s about prohibiting non-Mandarin being bad.
US equivalent to this would be forcing English (which we do) while jailing anyone who teaches Creole (which we don’t).
US equivalent to this would be forcing English (which we do) while jailing anyone who teaches Creole (which we don’t).
Mandarin being the primary language of education doesn't mean that Cantonese is prohibited; it's just not mandatory, so most native Cantonese speakers aren't going to get a formal education in it unless they specifically seek it out.