It is a difference in values. You are arguing as if presented with same data that you have there is only one obvious and rational conclusion, but that is simply not the case. If someone has different values they can come to a very different conclusion.
According to CDC data, 81% of deaths from COVID-19 in the United States are people over 65 years old, most with preexisting conditions. If you add in 55-64-year-olds that number jumps to 93%. For those below age 55, preexisting conditions play a significant role, but the death rate is currently around 0.0022%, or one death per 45,000 people in this age range. Below 25 years old the fatality rate of COVID-19 is 0.00008%, or roughly one in 1.25 million.
These are odds any risk taker would take.
I read this as being focused on the students, and ignoring the fact that many of the potentially affected people would be in the 65+ group that is most at risk. You seem to be ignoring that in favor of focusing on the minuscule risk of death to college students themselves.
Taiwan, South Korea, Vietnam and New Zealand have this situation under control without mass injury or loss of life. Turning away from those examples because you don’t care is basically the same as any other form of science denialism.