About 85% of the Iranian people themselves want full regime change, but have been murdered in their many many thousands many times for protesting for change.
There are Iranians all over social media supporting what Israel is doing. There are strong ties and warm regard between Israelis and non-IRGC Iranians, where they have still been able to communicate eg in diaspora.
Israel isn't calling for the whole of Tehran to evacuate, they are naming specific areas around military and regime targets to evacuate. Iranian people know they aren't the target.
The last thing Israel needed this week was another war but given the strong intel that Iran was only weeks away from developing nuclear bombs and holding them over everyone's head, and supplying them to their deranged proxies, there was no choice.
People can complain all they like about Israel, they will anyway, but Israel have done the world a massive favour and were the only ones with the balls to do it.