I've taught college level American and Modern European history for 12 years now. Most students at the graduate level are hearing these arguments for the first time for the reasons you suspect. Many professors are afraid of cancel culture. I was blessed enough to identify two others who shared my beliefs and we had discussions in the department, only behind closed doors. Later I learned two other colleagues shared our views but would never meet with us. That's a total of 5 professors and the institution I worked at, fired or refused tenure or failed to renew contracts on 3 of them.
On the other hand, the overwhelming majority of instructors at the college level, in my experience, actually subscribe to the progressive illiberal agenda. So many students have never been exposed to the ideas or processes you are advancing. The students live in a bubble, they do not watch nightly news, read a newspaper, or a textbook for that matter. They have access to the entire accumulated knowledge of mankind in a matter of minutes on their phone but they would rather use that device to play Minecraft, or watch Tik-Tok videos. Have you noticed the media use of a new term the last couple years; "influencer"? I have students whose career goals now include being an "influencer". Social media is making it easier and easier to alter reality, to find your own little bubble and exist therein. Students are bombarded by progressivism constantly, when they exist in their own little digital bubble, the impact is magnified. Hearing any other perspective is quite literally shocking to them.
