The argument is simply that the ultimate responsibility falls on the entity that created the problem, and so it is inherently not symmetric. Whereas you made the assumption that two "wrongs" are symmetric and so have equal moral status. Another standard way for explaining this is that when judging something, one ought to account for the actual power dynamics between the conflicting parties. The problem is, prejudice, classism, and bigotry tend to distort what people think and perceive as the actual power dynamics, hence long and controversial news threads like these.