> Is this tax sized to cover for that externalities
No, nothing like it. The final costs to the state of excessive sugar consumption are _vast_. This levy is primarily to discourage people from consuming loads of sugar.
> Is the collected money exclusively used to counter the externalities
While I don't know, I'd be very surprised. That sort of bucketed approach to tax collection/use is _extremely_ inefficient; the only place it can possibly be justified is social insurance.
No, nothing like it. The final costs to the state of excessive sugar consumption are _vast_. This levy is primarily to discourage people from consuming loads of sugar.
> Is the collected money exclusively used to counter the externalities
While I don't know, I'd be very surprised. That sort of bucketed approach to tax collection/use is _extremely_ inefficient; the only place it can possibly be justified is social insurance.