Upcoming midterm elections and lack of public support for the war.

Lack of domestic support, lack of international support

the requirement for congressional approval if the conflict persists longer than 90 days from the first “military operation”

potential for escalation by various allies into a much more involved conflict

downstream impacts of Hormuz being impassable

among I’m sure several other reasons I’m not informed enough to point out.

One preference the US public seems to reliably deliver via elections is the desire for lower prices.

Because it's becoming another Middle East quagmire which the American public has very little patience for, and it's bad for Wall Street, bad for prices at the pump, and bad for the global economy.

Do you understand how escalation works? US policymakers have discussed this for literal decades at this point, I'm shocked that we have to reiterate this.

Neither America nor Israel are willing to put boots on the ground. The bombing campaign failed, the naval campaign did not secure the Strait of Hormuz, and the enriched nuclear material is not going anywhere. If the war continues to escalate, America and Israel will be directly blamed for the humanitarian consequences of desalinization, ammonia and nitrogen plants being attacked. They cannot alleviate these issues with a air war, so they have to sue for peace or commit to a real invasion. Thus, the escalation ladder entirely belongs to Iran, they decide what the US and Israel coalition bleed for.

It's why the US threatened civilian infrastructure; they ran out of leverage. The stated goals were not attained, the home front in Iran is not divided, the China/Russia support axis is not disrupted, and America's allies won't fight alongside them for Israel. It's over, this is the damage control phase for both sides.

All those ships are needed for an easy win in Cuba.