“what they've done post-2014 to Ukrainians to get them to hate Russians"
Dude, the "they" here is Russians. They've been killing Ukrainians in large numbers since 2014.
It's so bad that Russians regularly put out propaganda videos bragging about how they murder Ukrainian civilians with drones. Here's one of the latest from the other day, attempting to murder a man walking his dog in the Kherson area:
The only way that you could say Ukrainians and Russians are "like brothers" is if you had a psychotic family member who had tried to abuse you your entire life.
The faster Russian culture is exterminated, the better off we all are.