Genocide shouldn't be spoken of lightly. For me it's a binary thing, and the attempted killing of an entire people is the same as the killing of any other. Similarly, killing any one person carries the same weight as killing any other person. The size of the people doesn't bother me -- if some dictator wants to wipe out the last tribe of pygmies it's still genocide and should be stopped with any appropriate force.
Appropriate being the tricky word there, especially given how I feel about force.