Before the U.S. and Israel launched their joint attacks on Iran 25 days ago, many Iranians said they would welcome foreign intervention if it meant the end of the Islamic Republic. The regime, in power for 47 years, had just crushed a huge wave of anti-government demonstrations, with President Trump claiming more than 30,000 were killed and vowing to come to the rescue of the protesters.Now, two Iranians — one inside and one outside the country — tell CBS News the feeling of optimism has shifted markedly after more than three weeks of war."If we had a world situation where Europe and the rest of the world was more orchestrated and together, collectively, with a plan that combined a number of things, both force and diplomacy and sanctions and discussions, all kinds of things — long-term plan — then that could have worked with this regime," said Reza, a British-Iranian whose name CBS News has changed to protect his identity.…