Reply To: Yom Hashoah, any thoughts?

And to address his specific points, TZom Gedaliah was established by the same Chazal who established Tisha B’av in response to Churban Bais Hamikdash. Taanis Esther could also fit into that if it would be a day of mourning, but it isn’t that anyway. Sefira is not an official azkara, only a miut in simcha. Anyone who has ever been in availus and learned the halachos should know the difference. And anyways those date back to tanaim, who were authorizeed to make such takanos. The crusades are b’davka mentioned in kinos on Tisha B’av (Mi Yitein Roshi Mayim, Sha’ali Serufa Baesh, and others.) And Tach V’tat was only imposed on the medina that suffered.