White fragility separates people further and deepens white biases. White fragility is an excuse for white people to feel better about their own racists biases and attitudes that have been imbedded in their lives. White fragility gives white people an avenue of pretend change that doesn't actually force change or true acknowledgment of non-white grievances.
White fragility makes the topic of race nearly unapproachable.
White people instantly become defensive and are afraid to be labeled as racists by others. This confrontation allows white supremacy to continue and white biases to prevail. 
By viewing white privilege as all evil and all bad, non-white people are left at a deeper disadvantage. Instead of viewing white fragility as an answer for white supremacy, white people can and should use their privileges to help spur racial equity.
White fragility is not real, it is socially constructed to defend systemic racism and stop forward progress.