One has to read about the shananigans of the oligarchs to understand the distrust among Russians when it comes to the global elites. As far as Iran goes, yeah, the neocons have been seeking to turn it into a dysfunctional state for over three decades (along with Iraq, Syria, et al.) and this has created a complicated dynamic. IMHO, the Islamic problem, especially, internationally, is Salafist, Sunnite, not Shia. Clean Break (neocons) proposed destroying even secular governments if they were seen as strengthening the Shia alliance. I think the threat to Western Christendom comes from the Gulfies (esp. KSA), Turkey, etc. Neocons don't. But Western Christendom seems to be as big a threat to them as the Shia Alliance. I hope I'm mistaken. I don't think I am based on what I've seen for decades.
A Clean Break
While Iran is clearly an enemy of the US and Israel, their State Department designation as "the worlds number one state sponsor of terrorism" is a bit misleading.
The report ascribes all the support to Hezzbollah as just that.
Lately Hezzbollah hasn't been blowing up much of anything except ISIS.
Today that moniker more likely belongs to the US, Turkey and KSA.