Reagan's non-response was unfortunate, perhaps even tragic. But a multitude of others had an opportunity to make an appropriate response and delclined to do the right thing.
Iraq Hostiges, Kobar Towers, Tanzania, Narobi, Cole.....all were basically non-responsive to an entity that had declared war on the United States in 1996!
Blaming Reagan is simplistic and ignorant. Radical Islam many have reared its head on his watch.....but others let it prosper....until G. W. Bush came along.
Reagan did finally get it right in the end. The US did achieve revenge against Iran in the Tanker War of 1987-88. I also think George H.W. Bush was surprisingly better than Reagan in dealing with Arab thugs. When Hezbollah murdered Colonel Higgins and threatened to kill another hostage, Joseph Ciccipio, Bush deployed the USS Coral Sea off the coast of Lebanon and Hezbollah backed down from its threat and all the hostages would ultimately be released. With the end of the Cold War, the US was now able to devote its resources to fighting Islamic terrorism. If Bush 41 had been re-elected, maybe we wouldn't have to worry about al Qaida and the Axis of Evil.