Except these arms will be used to protect the Iranian "government", and not actually the people of Iran.
History shows a compelling need for defense against foreign
aggressors. Consider the Iraq v Iran war, wherein nearly a million
Iranians died. We fomented that war, aiding Iraq with intelligence
& weapons, including chemical & biological WMDs....the very things
we based the later invasion of Iraq upon.
Since then, Israel has lobbied that we wage war against them,
this time directly rather than by proxy. The Saudis would
likely go along.
So we've created circumstances that created their self
defense needs.
...So when we pick which governments are allowed to weaponize, we need to consider their ideas and policy decisions... Whether they are dictators, authoritarians or religious nut's... We shouldn't be helping those types of regimes gain power.
Of course we don't want Iran armed. They overthrew the
leader that we installed in the 1953 coup. And Israel wants
them neutered. But I'm considering their perspective, not
Ameristan's or Israel's.