I think the term ethnic cleansing is underused. It's a strong term with a clear, unambiguous meaning that people can still stand against. It does not run afoul of the fact that when many people hear "genocide", they don't think of formal definitions, they think of WW2, trains and gas chambers, and attempts at thorough extermination at a large scale.
Ethnic cleansing, on the other hand, begs simple questions, like, what is the ethnicity being cleansed from? Simple answer: their land. How are they being cleansed? Killed, driven away or assimilated into another culture. What, exactly, is being cleansed? That group of distinct people right there, their name is whatever.
It's clear, concise, and very hard to argue with from any sort of semantic position.