What do you mean "expose"? It's already an accepted truth by the general public.
and get rid of the left from the colleges.
The hard fact is that most Phd's who want to work at colleges are at least left-leaning moderates. Most conservative Phd's seem to end up in company/gvt labs, think tanks, or otherwise work outside the university system.
It would be exceptionally hard to find enough conservative teachers to replace 30% of the leftists on college campuses, much less replace them all.
You could, I suppose, start exclusively conservative colleges (as I believe has already been done) but they will always be fewer and further between then the liberal schools.
This is not an area that we can ever truly dominate and there are better targets to be found elsewhere.
News media anyone?