No. People are crazy everywhere. That is not the same as the actual leaders of the country. The one that are calling the shots making the same claims for 46 years.
Now, I don't know if you noticed, your cousins while they are not kind to Arabs (which if you had Arab cousins you would have noticed that they are not very kind to Jews), have nothing whatsoever with Iran, no more than they have anything with Napal.
That’s a little simplistic. Iranians feel, somewhat justifiably, that they and the Arab world have been pushed around by the West for over 100 years. The Jihadism we bemoan today didn’t arise in a vacuum - it is at least partially a reaction to Western interference in Middle Eastern affairs (recall how the US deposed a democratically elected Iranian leader). Israel is one such example of this Western interference, and while I obviously have the utmost sympathy for Israelis - having family there - I do think not enough Westerners are willing to see this from the Arab/Iranian PoV. There’s a reason they dislike us, and it’s not just that they’re fanatics. Negotiation would be more fruitful if we didn’t typecast our enemies as unreasoning fundamentalists.
Now, I don't know if you noticed, your cousins while they are not kind to Arabs (which if you had Arab cousins you would have noticed that they are not very kind to Jews), have nothing whatsoever with Iran, no more than they have anything with Napal.
1500km away!