Blaming others and holding grudges or having enimty is not Dharma.
Our 5 poisons are our 5 poisons, they are the cause of our sufferings, if we have to blame then blame them but not other people.
Our limited patience or tolerance that cause conflicts are ours too, blame them. Because of our attachment/desire, ignorance and aversion we take rebirth after rebirth in samsara.
In samsara we have to experience all kinds of conflict with other sentient beings….who is to be blame for that? Ourselves of course. Because we brought ourselves to this samsaric situation.
That is all.