The set of people who care about anything that using one time zone for everyone would fix (mainly programmers who have to deal with time zone conversions) is much smaller than the set of people who care about the things it would break: anyone who wants to understand the shared global culture around local times (for example: anyone who travels to other time zones regularly, or even anyone who watches foreign movies or TV and wants to understand what the characters are talking about when they mention time of day).
That's why I support getting rid of leap seconds, but not getting rid of time zones: the number of people who leap seconds helps is very small (possibly zero) since their effect on everyday life is microscopic.
Yeah I know. I'm not actually seriously entertaining the hope that 2 or 3 happen. Eliminating DST would be I think also be a genuine benefit to almost everyone with very little downside.
That's why I support getting rid of leap seconds, but not getting rid of time zones: the number of people who leap seconds helps is very small (possibly zero) since their effect on everyday life is microscopic.