Republican President Ronald Reagan utilized bombing against Libya’s leader, Moammar Gaddafi in 1981 and 1986, and many feared what it might lead to, and it led to a silencing of Gaddafi at that time.
Democratic President Bill Clinton utilized bombing against Serbia in Bosnia in 1995 and Kosovo in 1999, and ended both crises effectively.
On the other hand, Republican President Gerald Ford and Democratic President Jimmy Carter stood silent in wake of the mass murder in Cambodia from 1975 to 1978, and Bill Clinton stood by as we saw mass murder in Rwanda in 1994.
Our ignoring of Cambodia and Rwanda has been condemned in history, while our intervention in Libya by Reagan, and against Serbia in Bosnia and Kosovo by Clinton, has been praised.
Conclusion: Show weakness and fear, and evil forces triumph, as in the 1930s with Adolf Hitler before World War II, which was far worse than if there had been a proper reaction against Nazi Germany in that decade!
Appeasement and isolationism NEVER work!