Answer:
Some were mistreated, some were beneficiary
Step-by-step explanation:
Mostly, native Americans were mistreated as they were shoved off their lands, hunted for sport, or enslaved. Europeans also brought diseases that wiped of populations.
Some native Americans traded and had mutual benefit with Europeans. These natives traded for weapons in exchange for pelts, food, or knowledge.
All in all, native Americans were treated both brutally and "nicely".