> Exactly right. We should work to lessen the tax burden instead of incentivizing raising it by hiding the number.

This misses the point though. The problem exists at any tax rate greater than zero. Doesn't matter if it's a penny or 100% of the price, the issue is that the advertised price is not the monetary value that's expected to be exchanged for that product/service.

The point is that you shouldn’t _want_ it to include taxes, as that incentivizes worse behavior in governments. You should be reminded when you purchase something of how much is added on top by the locals.