Private consumption is only possible due to productivity gains due to capital investment. Venezuelans can't just vote to redistribute nonexistent wealth or declare food to be a human right and magically have sufficient food appear.

Food comes from capital investment in farms, factories, etc. That is real wealth.

>There are a couple of standard answers, including government consumption / public works projects, that can address this.

These answers don't work, and are great at destroying wealth.

Note that a sales tax as only tax means no income tax, so overall a gain to production incentives.