True, in general, right winged people focused too much on the politics side of the isle, while ignoring culture. What you and I see around us is the consequence of those decisions. This left the door wide open for adversaries to attack the cultural part of America's (and Western European institutions for that matter aswell) and imprint their ideas that the West is bad etc.

Looking back about half a century ago, when the left and openly communists people hijacked Hollywood (via guilds and labour unions) you had considerable amount of pushback from actors and industry itself, such as Ronald Reagan and giants such as Walt Disney himself and more. All of this exposed the left and ended with HCUA trials where communists got expelled from the industry. But to whom got the torch passed to continue exposing the left from Hollywood once proud patriotic actors left due to age, health, career switch, etc. or Walt Disney dying from old age? None really, this left the door open to those people who got exposed to get back into Hollywood and create media describing those trials as witch hunts etc.