That's not what Trump said. He said "I prefer men that weren't captured", and in my opinion it's the worst thing he's said.
He was pissed at Mc Cain so he defamed thousands of Americans that suffered things he could only have nightmares about.
McCain came down in a small lake and was immediately surrounded by angry farmers. He couldn't walk due to injuries suffered when he ejected. Would Trump have had him pop a cyanide capsule?
I've known 6 former POWs. 4 in German Camps, one in Jap camps, One in N. Korea and One N. Vietnam. I am proud to have known 5 of them. The 6th was a coward that stayed in N Korea at the first repatriation.
America would have suffered if the 5 had swallowed cyanide.