Following the invasion of Ukraine by Russia, many critics of Russia have argued that this war is a genocide against the Ukranian people. I don't feel the need to provide any evidence for this, but still, here are a few notable examples of supposedly impartial agents making such claims.
Canada House of Commons: https://www.npr.org/2022/04/28/1095272683/canada-russia-genocide-ukraine
However, it is an apparent fact that Russia, if they so desired, could annihilate the Ukranian people with their 6.000 nuclear warheads. Yet, Russia have refused to use these weapons. While warfare in residential area has been waged, it has largely been done due to the presence of the Ukranian army in those areas. And while horrific war crimes have been committed by select Russian soldiers, it does not appear to be the motive of the Russian army in general (as evidenced by the fact that hundreds of thousands of Russian soldiers have apparently only been able to kill a few thousand civilians -- a ratio that doesn't really suggest they're all that interested in the civilians).
In the face of these apparent facts, what arguments and counter-counterarguments have the aforementioned critics of Russia offered in support of their claim that Russia is committing genocide?