Wikipedia (emphasis mine):

Legal definition of genocide

The 1948 Genocide Convention defines genocide as any of five 'acts committed with intent to destroy, in whole or in part, a national, ethnical, racial or religious group'.[14][15] The acts in question include killing members of the group, causing them serious bodily or mental harm, imposing living conditions intended to destroy the group, preventing births, and forcibly transferring children out of the group. [14] Genocide is a crime of special intent (dolus specialis); it is carried out deliberately, with victims targeted based on real or perceived membership in a protected group.[15] The genocides recognised under the 1948 legal definition that led to trials in international criminal tribunals are the Cambodian genocide, the Rwandan genocide, and the Srebrenica massacre.[11]

Given that Ukrainian children are being captured and indoctrinated, and it's hard to see Putin being happy with the existence of the nation itself as anything but a suzerainty, it feels like we're ticking enough boxes not to clutch any pearls about applying the word "genocide".

It sucks to know that there are multiple concurrent genocides, some more intense than others, that are being treated way differently because of racism and money in politics. But it doesn't diminish the crimes of, e.g., Israel to call Russia's aggression also genocide.