^^ Pretty much. If we use up all of our own oil, then something like the current oil price spike changes from "inconvenient extra expense" to "economic attack on our republic that must be responded to with extreme force".
If you think Iraq was a questionable blood-for-oil war, imagine if the U.S. was in a position where if we didn't get oil, our military or manufacturing would shut down. We would be invading countries like we were 1930s Japan.
I think by the time we could use up the domestic oil supply we would have come up with a viable alternative or either blown ourselves up. One thing is for sure though, if we keep fucking with people, one day we're gonna get body slammed like that punk in the bully video and rightfully deserve it.