This is simply not true. I'm Iranian and I wish it were but IRGC has more support than you think. There is at least 30-40% of the population who support it and within those, more than half will gladly die for the regime.

My home country has more than 90M people and 40% of that equates for millions of supporters.

From the outside, you are only hearing the diaspora talking points, which don't realistically represent Iran. Many of them have grievances with the regime, or have been exiled after the Shah.

Iran is a complex country and it's hard for outsiders to grasp it, mainly because the censorship happening on both sides.

I personally think this war was a major mistake, no Iranian is going to cheer for US or Israel after watching their children being killed by them. The west was doing a good job exporting liberal ideas to Iran slowly over the past 3 decades. Some of those were starting to drip into the country, but this war undid all that effort.