Actually we do understand, but this isn't a champion for patriotic Americans like Reagan. He is winning them over because he fight like this in the same way Jersey Shore won over audiences for their fights. The Pop Culture obsessed society likes watching celebrity train wrecks.
He isn't promoting babies being destroyed. He's no Gary Johnson, he is much more like Ronald Reagan,
Reagan, Churchill, Thatcher, Lincoln, JFK.
And America and England are now much different than they were during the lives of these giants.