Brain Fertilizer

Make all liberal arts professors live in 4-family compounds, and all students live in 6-person suites; each with a single, shared kitchen and recreation area.

In short, make them live it before they can advocate it.

UPDATE:
Should have been labeled "Snark". Sorry for the confusion.

However, there are three aspects of humanity I take to be generally universal:
One: humans tend to the minimum necessary. Sometimes that's the minimum necessary to be able to feel smug, rather than the minimum required by rule, but when people aren't completing assigned tasks to everyone's expectations, resentments build.
Two: humans tend to overestimate their own contributions/efforts/difficulties, and underestimate those of others.
Three: when "the public" owns something, 99% of the time no one takes responsibility for it.

When I was in college, young students tended to be idealistic. It was always, "Wouldn't it be cool if...?". Heck, I dreamed of the idea of living in an artists' commune at one point. In my imagination, I saw it all being cool and a better use of efforts. But after nearly 2 decades of life and observation of human nature, I understand a little better how hard it is to get people to really work hard for the common good when they don't see a personal benefit of going beyond taking care of their own needs. "Good enough" is important: it's why you don't spend 18 hours cleaning your toilet every day. But it is also subjective, and "good enough" for me isn't good enough for you in some things, and vice versa. If nearly a third of arguments in marriages are based on disputes regarding division of labor, how can you expect friends/colleagues to be able to negotiate such pitfalls with less difficulty?

Few people are willing to work 100 hours a week for the comfort of an acquaintance who works only 10 hours a week. Living in a communal situation tends to make those situations more clear than the invisible nature of modern US socialism (until a newspaper article pulls back the curtain to highlight the "plight" of a woman on total support from the government being upset that she'll have to pay $5 to enroll for medical coverage because it will force her to choose between internet access and her cellphone...). I'm convinced that people who claim that "true" communism has never been tried have probably never tried to live it themselves for a long-term. I'm convinced that people who can support Castro have never been without their comforts. I'm convinced that the people who advocate higher taxes for the rich don't pay a penny more than they are required by law...and enjoy their comforts, as well. Seattle is a very liberal city, but when given the chance to add a mere $.10 to each cup of coffee to increase spending on early child care and education, 68% said no. Oregon is a liberal state, but refused to increase taxes even in the face of oh-so-typical blackmail from the Governer ("If you don't vote to raise your own taxes, I'll be forced to cut education while keeping all my perks and not doing a thing to reduce entitlement spending").

Simply put, most liberals want their compassionate platform only if they can get someone else to pay for most of it.