Do you condemn the native Americans too for killing "innocent civilians"?
This isn't actually that much of a gotcha outside of leftist circles because the average settler really does view violent resistance by native Americans to the encroaching settlers as barbaric and inexcusable. I've unironically seen them make the comparison between Hamas and native American tribes in which both are called bloodthirsty savages and worse than the Nazis.
These people really do think that what the settlers did to the natives was justified because the natives had the audacity to defend themselves, and god forbid they attacked a settler village and killed its inhabitants who were in the process of stealing native land, the very same settlers who would regularly form militias to butcher entire native villages and whose settling of native territory was what drove and gave justification to the brutal military actions taken against the natives.
Settlers and those who identify with them (which unfortunately deep down seems to be most Westerners) view the native as fundamentally devoid of morality, as a semi-animal who simply loves killing for the sake of killing and who is incapable of civilization except when subjugated by a more enlightened race. This applies just as much to how Palestinians are viewed today by Zionists and their liberal western enablers as it did (and in some ways still does) to how Europeans viewed the indigenous people of the Americas.