Russian President Vladimir Putin on a screen at Red Square as he addresses a rally and a concert marking the annexation of four regions of Ukraine — Luhansk, Donetsk, Kherson and Zaporizhzhia — in central Moscow on Sept. 30, 2022. Alexander Nemenov | Afp | Getty Images Prominent supporters of Russian President Vladimir Putin are using increasingly "genocidal rhetoric" when discussing and demonizing Ukrainians, analysts note, with some pro-war commentators cheering the concept of the "liquidation" of the modern state of Ukraine. Ultranationalists have come to the fore in Russia particularly since the Feb. 24 invasion, continuously pushing the Kremlin...