I don't see anything in what you shared in those speeches or links as sufficient enough to prove that Iran has a hatred so extreme its goals is to attack the US with nukes (or even drones).
I wonder why dyou didn't address the Great Satan speech that khomeini refused to (recently) dissavow and even reconfirmed, here are some exerpts:
“We shall export our revolution to the whole world, until the cry ‘There is no god but Allah’ resounds over the whole world. There will be struggle.”
or variant:
“We must strive to export our Revolution throughout the world… until the cry of ‘There is no god but Allah’ resounds over the whole world.”
jihad must be brought to "the Great Satan"
“America is the great Satan, the wounded snake.” Khomeini introduced the term here in 1980, calling the U.S. the central devil gathering other evils around it to plunder Muslim resources.
“The Scripture commands: War! War until victory! A religion without war is a crippled religion” paired with his parallel statement
“We are fighting against the Western world devourers led by America” and
“It is the duty of every Muslim to wage jihad against the oppressors.”
^
Iran's regime/Khomeini, did not retract, did not edit, did not posthoc edit, did not dissavow this and/or other cermons, they/he reconfirmed it.
These aren't incidental "just some old speech"quotes drawn out of context... they are a core fundament of the regime's ideology.
So that in mind let me ask you a question in return then hens ^given that..:
what sort of rethoric, from a radical Islamist regime, would convince you that said regime, hates the Great Satan, and would get rid of it if it could -> then?
-If one repeatedly said one hates the west and its way of life, and calls it “the great satan” (which in Islamic context is sort of like one of the worst titles to dubiously get)
-if one feels threatened by said west
-if one has waged a terrorist proxi-war against the west and its allies from a ideological religious standpoint,
-if one has launched drones against the west and its (civilian) ships in the vicinity..
-and if one has expressed the desire to own nuclear weapons to strike back at enemy(s)
the why would you not even trust their own words and actions when it comes to that

?
Look..I don’t like this war/ escalation by Trump any more than you do eyh.. but I Also find the standpoint of Iran “just wanting to be left alone” and the effects of its regime owning a nuclear arsenal (and a large jihadi terrorist network) not being incredibly dangerous gullible at best and naive at worst. Iran Imo is an entirely different beast then Irak's " weapons of mass destruction" bushification.