No, we can't ignore them now. Iraq was historically the balance to Iranian power and now that we destroyed Iraq's military capability in our theatrical adventures, Iran is the dominant conventional power in the region. And they're getting increasingly assertive (just sent a warship through the Suez canal to tweak the nipple of the Arab world at a time of unprecedented instability).
meanwhile americans standing for election are chanting ""bomb, bomb, bomb, bomb Iran"
After all the us hasn't finished torturing brown people.
which is really what the US wants to do , torture brown people,and kill loads and loads of brown people whilst bleating about how the US is really great.