So, no, you're not. Or you're misunderstanding how this works. "Stop the war in Iran" is a majority position
in polls. People don't vote on that, because people don't care about the war in Iran. Instead, wars at the ballot box are fought over which ethnicity needs to be the target of state violence, or whether or not it's a good thing for citizens to have health care. And those wars are serious, and hard-fought, and occasionally slip off the edge into non-democratic authoritarianism.
But voters don't care about Iran. So Iran policy is dominated by the interests of non-voting/non-democratic power structures like US business interests and geopolitical long-term desires. And on these issues, those power structures show marked agreement. So that's what we do, modulo tactical considerations (e.g. the Obama administration pursued a policy of containment and treaty engagement out of conservatism, where Trump installed a bunch of trigger happy cowboys who want to watch bombs on TV; but both viewed Iran as an enemy to be opposed, and for the same reasons).
So I repeat: to you, if you happen to view Iran policy as extremely important, it must feel like The System is conspiring against you to manipulate public opinion. But it's not. It's operating as designed, and 100% democratically. You are just in a minority, and this is what being in a minority feels like.