looking back with hindsight and applying modern attitudes to historical times.
“A shallow and stupid argument.”
Actually, that somthing that is continually done by historian filled with guilt for what their ancestory thought was the proper action decades and centuries before.
By your reasoning the founding fathers committed crimes against humanity by not outlawing slavery.
Um, no. In declining to abolish a practice they knew to be questionable but which was established, the FF were obeying a conservative impulse for limited government. The atomic bombings overturned the established consensus of ius in bello, amounting to an unprecedented bid for expansion of power by the murderous, soulless modern state. People calling themselves conservatives used to understand this.