What exactly is that picture doing to support your claim? Bandera is a controversial figure in Ukraine, he was a strong force for Ukrainian freedom and liberation, he also did a lot of unsavory things. He is seen as a symbol of Ukrainian independence, if that us your basis for claiming that Ukrainians hate Poles, then you are grasping at straws.
Then again what would I know, my family is only from both countries and my Ukrainian aunt did seem to point her fork menacingly at my Polish grandfather during dinner....perhaps you are right....
Be fair, I have the same reaction when I see a Russian today carrying a picture of Stalin, which I’ve seen many times.