We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.
I bolded key words you seem to have skipped over.
I didn't skip over it at all. It's my whole emphasis here.
Iran's leadership is a threat to The United States of America. Even moreso if they become a Nuclear Armed Power.
Not that hard to understand.
"Our Constitution was made only for a moral and religious people. It is wholly inadequate to the government of any other." - John Adams
