Why do some people believe it was a mistake for the un and the us not to occupy Iraq after the Persian gulf crisi?

Some people believe it was a mistake for the UN and the US not to occupy Iraq after the Persian Gulf Crisis because they argue that a decisive military presence could have prevented Saddam Hussein from maintaining power and potentially engaging in further aggression. Additionally, they contend that an occupation might have fostered a more stable political environment, reducing the likelihood of sectarian violence and insurgency in the years following the conflict. Critics also suggest that the lack of action allowed for the eventual rise of extremist groups, contributing to ongoing regional instability.