IRi has support, no doubt but nobody knows to what extent.
For the West, Khamenei would be an amazing trophy to kidnap and a satisfying kill if possible. Trump has claimed back in July he stopped the Israelis from assassinating him, but that was because Trump wanted a "deal". The deal being presented is a surrender instrument and most likely will be rejected, hence even Trump has no use for him now.
Yes, which suits the West and GCC just fine. They need bad guys to sell weapons.
They have already taken this risk and have the strictest security. It's why they go around assassinating everyone else.
Sunnis did nothing over a genocide in Gaza , why would they bother with Khamenei ? The Sunnis could care less, just look at that revolting "board of peace". Long term if Iran and Shias are further radicalized , that fits nicely with the "New Middle East" that Abraham's Accords and Abraham's Shield are building towards. That New Middle East envisions Shia as the bad guys anyway against the civilized, progressive Muslims and their Western/Israeli allies.
To me it all adds up and these other scenarios are a disinformation.