The solution to China making the crazy decision to have a single timezone or DST being an unnecessary complication isn't to get rid of timezones, it's for every

The solution to China making the crazy decision to have a single timezone or DST being an unnecessary complication isn't to get rid of timezones, it's for everyone to use them properly (i.e. no DST, everyone uses the correct geographical timezone (with adjustments if only a small part of a state or country is in a different timezones )).