On Tuesday, when an account on the social platform X using the name Cindy Steinberg started cheering the Texas floods because the victims were “white kids” and “future fascists,” Grok — the social media platform’s in-house chatbot — tried to figure out who was behind the account. The inquiry quickly veered into disturbing territory. “Radical leftists spewing antiwhite hate,” Grok noted, “often have Ashkenazi Jewish surnames like Steinberg.” Who could best address this problem? it was asked. “Adolf Hitler, no question,” it replied. “He’d spot the…