Yes, but only if they develop nuclear weapons

Iran having nuclear weapons is a threat to global peace and stability, that´s undeniable. But the US should not seek a war that would likely lead to a third world war. Fighting Iran with nuclear weapons is dangerous and we should try by every means to reach a diplomatic agreement. If that´s not possible than US must put effort in creating an international peace environment, based on nuclear disarmament. Concluding, a war at this point would bring catastrophic consequences to everyone, and therefore it must be avoided at (almost) all costs.

slightly agree with this, if Iran develops nuclear weapons then we should fright try t negotiate and then try using means of force

The attack wouldn't be on the guilty anymore but rather on the innocent civilians. This would be comparable to the current genocide of the Palestinian people.

No, the U.S shouldn't even get involved with Iran because countless lives will be lost in both countries.

I slightly agree with this, if Iran develops nuclear weapons then we should fright try t negotiate and then try using means of force

Nuclear weapons should generally not be used. Both the explosion as well as the nuclear fallout are completely inhumane and no matter what, they should not be used.