I must say it is unclear to me when it became a requirement that every person be familiar with any potential struggle of any other person. In this country (and everywhere else on the planet), the rules are pretty simple: Dont kill other people, don't physically hurt other people, and dont take other peoples things without their permission. We have added some nice social constructs of "dont say incredibly offensive things" (ie. words designed to promote abuse of a given group). But no where did anyone decide that we were not supposed to say any phrase that shows an "ignorance of the struggles of others".
Not addressing someones struggle is not a fireable offense. Speaking in generalities is not a crime, and those who do not fit the generalization are not victims. Medicine, science, this county, and all of humanity are founded on the basis of discordant ideas. Disagreement with the viewpoints of others has produced some of the finest works of science, literature, and art.
My opinion is that every human will spend some period of their life feeling marginalized in some way. No one dies at 100 years old without facing a struggle that the vast majority of the population does not understand. I'm an upper middle class white male, but trust me when I say I've been terribly hurt by people saying things that they would never think offend me. The point is not to wall yourself off from every emotionally unpleasant experience. Those experiences are crucial for the development of compassion, understanding, and forgiveness.
A world without microaggressions, disagreements, and painful experiences is not a world I want to live in, because it will be a society where true empathy and understanding have been replaced with shams of their former selves.