Note to Liberal "Catholics"
I do not know personally any liberal Catholic who actually acknowledges subsidiarity as an element of Catholic social teaching, but I guess the surest way to ever convert a Liberal "Catholic" to Catholicism is to provide them with some knowledge.
So, if one has ever asked why the Catholic Church teaches subsidiarity as an indispensible notion of social justice?
Here is one great answer:
"The larger the mob, the harder the test. In small areas, before small electorates, a first-rate man occasionally fights his way through, carrying even the mob with him by force of his personality. But when the field is nationwide, and the fight must be waged chiefly at second and third hand, and the force of personality cannot so readily make itself felt, then all the odds are on the man who is, intrinsically, the most devious and mediocre — the man who can most easily adeptly disperse the notion that his mind is a virtual vacuum . . . The Presidency tends, year by year, to go to such men. As democracy is perfected, the office represents, more and more closely, the inner soul of the people. We move toward a lofty ideal. On some great and glorious day the plain folks of the land will reach their heart's desire at last, and the White House will be adorned by a downright moron." - H.L. Mencken, 1920
I would have to say that we are living in the time that Mencken predicted. With Obama the White House has been adorned with a downright moron, not to mention one who is devious and mediocre.