There was, and still is, no scenario in which US and/or Israel attacks Iran and effects regime change. Come on, we've been over this multiple times over the past few decades.

Any direct military action will galvanize population against the existential threat, not against the tyrant who's still your countryman, no matter how rotten.

If they wanted true change, grassroots support was the only way. Was, because at this point more than likely any revolution has been pushed back by a few years at least, probably decades.