Rav Hirsch did not encourage non-Jewish culture, in fact his policy of austritt was designed specifically to separate culture from education. He also did not send his students to outside colleges, he made his own. And why in the world would anyone consider it a positive thing to spend years learning secular law – and if so for law, why not for MTV trivia? If all knowledge comes from G-d (quote from Dr. Lamm) and therefore is worth pursuing then all knowledge that comes from G-d is worth pursuing – why limit your knowledge to what the colleges teach?
Rav Hirsch was talking about Germany during Haskalah. He was right, then. He and his small Kehilla (about 300 members) saved German Jewry. Rav Soloveichik was talking about New York in the 60’s. There was no comparison