US has a military presence in Qatar, Bahrain, Iraq all in much closer striking distance than Israel.
Even in best case scenario where they totally lose their military capability to mount a response, do you really think the US will be uninvolved in a situation of regime collapse? I find it hard to believe the US wont be compelled to intervene in chaotic scenario where a strategically located country of 90 million plus can be totally up for grabs and serve as a beachhead for myriad groups. This isnt without even touching on certain migration crisis this would trigger off.
Get ready for deployments in a year max