Choose your school wisely. I would suggest visiting a prospective school to find out whether or not it is suitable. For example, at my alma mater Occidental College, cultural leftism pervades the entire culture, and you will quickly find yourself ostracized if your political views are to the right of George McGovern's. When Phyllis Schlafly appeared on campus in 1981, she was shouted down and almost physically attacked, and more recenltly, Dinesh D'Souza got a similar reception.
By contrast, at Biola University, a Christian institution thirty miles away, Laura Ingraham was favorably received at an appearance last year at which hundreds lined up to buy her book. Religious faith pervades the campus, and students can often be overheard discussing biblical topics.
Look at Grove City in Pennsylvania. And, for men, Hampden-Sydney in Virginia.