Here’s my latest little ditty for the Deseret News. To get from Kant to grade-school relativism all in 750 is a bit hasty, I know, but the connection is there all the same.
And this may help to answer a common objection I hear to my critiques of progressivism and/or relativism: Of course our liberals aren’t relativists because they belief in equality, progress, compassion etc. Very well. But the prior move of scientistic (fact/value) relativism excludes all traditional morality (which tends to appeal to God and Nature), leaving only the ungrounded, abstract, and substance-less appeal to Progress.