It’s republicans saying it’s bad. Because it changes the perceptions of people. Usually those perceptions reveal to people that conservative values are just the wrong way.

As in it’s actually a good thing to listen to foreign peoples viewpoints immigrants aren’t evil monsters they actually boost economies more than homegrown civilians. Bigotry is actually a bad thing. religion has been the largest cause of death in history and isnt really what’s needed to help people tax breaks for the rich doesn’t help poor people etc

When people have access to higher education, they gain skills to think freely and not just parrot what authoritative figures tell them. That’s why conservative republicans say higher education is bad. It puts them in the wrong and lowers their voter base. This is just a simple explanation but should get the point across.