2. Increased demand for consumer staples, if met with increased supply won't lead to inflation, if suppliers and entrepreneurs see the increase in demand as stable, they will make investments to increase supply. As long as we allow the price seeking mechanism of the market reach equilibrium, inflation will be at most momentary.
3. Velocity of money doesn't, by itself create inflation. Said another way, it's not a sufficient condition to bring about inflation. Sometimes a massive increase in money is just hoarded and doesn't enter the economy in any real sense.
4. Taxes don't necessarily have to rise in a regressive way such as sales tax and instead could be redistribution. I suspect what we would see is less inflation in the luxury art and real estate market if taxes were increased and the proceeds redistributed.