Israel can bomb the IRGC and Basij bases, police and prisons (release political prisoners). They can collapse the regime, restrict its movement, eliminate chain of command. From there the Iranian people can raise and topple the regime

This is quite interesting to me - how long can Isreal really continue with such intensity ?

The distance between Israel and Iran is huge - it must be extremely expensive to operate the air bridge allowing their air force to operate as it did last week.

But I would be really surprised if they can go on like that for a month.

This seems wildly implausible. I've never heard of this happening as the result of foreign attacks. And also, any new regime is very unlikely to be more pro Israel or the US.