Let’s talk contracts here. Social contracts. If you are an American citizen who pays taxes, you are owed certain things. That’s the agreement the Constitution memorializes, that the feds and states are obligated to take shielding actions on your behalf.
First and most important, protection from people and nations that might hurt you. That’s what the Iran thing is. Violent extremists are getting nuclear capability. The U.S. federal government cannot allow it, especially with the 9/11 legacy. Apparently, isolationists don’t understand the contract. Danger is to be mitigated.