I'd agree with those who suggested it be called Neville Chamberlain Day, a celebration of cowardice, appeasement of evil, and basic treason.
I can think of another advantage to actually making this holiday: Since no decent, self- respecting American would possibly recognize or celebrate such a repulsive, anti- American hippy holiday, seeing those people who DO celebrate it would be an excellent way to smoke out the cowardly, traitorous, anti- American leftist vermin in our midst. Furthermore, seeing those elected officials among us who celebrate it will help the public see who NOT to re- elect.