There are pro-government rallies and there are anti-government rallies. Because like any country, Iran is not a monolithic block in which all people feel the same about everything.
I still have contact with people in Iran. They are in a very weird state between happyness and terror. They mourn the senseless death of 160 children, they cheer for the long awaited death of IRI goons. They fear the bombs on civilian targets and are indifferent to bombs on IRGC and Basij sites.
"his government was defending the people of Iran from Israel and the US" is propaganda in itself. Just from a different government. I don't know where you live, but for the Iranians I've come to know, many of the things that I took for granted just aren't normal. Dancing in the streets, wearing whatever I want, eating in public during Ramadan, saying your government is shit - all of that carries penalties in Iran. Almost everyone I know there has had one or more members of their family beaten or punished for such infractions.
And now they are faced with choosing between two powers who both tell them: "We are liberty, we are self determination, just help us", while both of them just want to subjugate them.