Through the schools, and through "the culture."
The proponents of this bogus "holiday" have taken full advantage of "the marketplace of ideas" and used it to promulgate their lies.
And now YOU come along, and tell us to shut up, and NOT oppose them?
What country do YOU think this is?
By the way, Falwell was far to kind to that bastard. Among his other, um, "endeavors", he had a nasty practice of tying up women who offended him (easy enough to offend a paranoid schizophrenic), and then applying various "truth methods" such as pressure hoses, vices, and hot soldering irons to them. (Soldering irons, of course, go in the mouth -- as does pressurized water, mixed with detergent.)
Do a google search for two words: karenga soldering. You'll feel ill.
Happy "holiday", sucka!
One with the freedom to worship how one wants, celebrate whatever culture one wants, and observe any holiday they want. Silly me.