There are proceeding at the ICC against at least two countries on the accusations of genocide right now.

Whether it's worse or better than Holocaust is debatable and you can bring up a metric. Did Gaza reach 10% of the Holocaust? At what rate we count abducted children against murdered adults? Do we count deaths or suffering too? Do the circumstances of death with genocidal intent contribute to the metric?

What can we learn from the quantitative comparison of one with another?