They were a bit before the "progressive" 1920's but look into the barbary coast wars
Well, first the genocide against the Greeks of Asia Minor was not carried out by “radical Islam”, but by the “model” secularizing Turks—Kemalists as the article calls them—that everyone on the left natters on about being proof that Islam can be modernized.
Second, how did we deal with it then? The same way the British and French did, by ordering our warships off the coast not to rescue Greeks fleeing the mass murder. The only power with ships in the area that rescued Greeks was Imperial Japan, for which reason Greece never declared war on Japan, even when it was at war with Nazi Germany and Fascist Italy.