Obviously you did not read your Econ 101 text. Neither the supply and demand curves are fixed curves. You play with one the other moves. The intersection is not as simple as the "tax and spend" group around here thinks about it.
The long term key is making the system more efficient. The least efficient part of the cost is taxation. Any thought that holding or increase tax is going to help the situation is not right. Let the markets sort them self out with out government interference.
No, that is exactly my point. In this case supply is fixed, only demand is a variable. Without a change in supply, demand will set the same price point regardless of what the component costs are. It's really very simple math. If people will pay $5.00 for a gallon of gas, they will pay it regardless if the price contains taxes or not. Unless you find something that changes supply, then price won't change.