There are lots of "marginalized" people in our society. What makes someone marginalized? In general, if people are part of society but aren't welcome by the majority, they are considered marginalized.
If you think about the news headlines, you'll probably be able to think of many marginalized groups in our society. Women. Visible minorities. People with disabilities. Indigenous people. The LGBTQ+ community. The list goes on, and on, and on.
There are those who've said that marginalized groups should just "get over it" and get on with bettering their lives. It's easy to say, but it doesn't recognize the reality that the structures of society weren't created to give those groups equal opportunities. This is why we often hear discussions about institutionalized racism, sexism, rape culture etc.
I watched an interesting video about racism that I think applies to many of societal issues. Here's the link to the video. In short, the audience (predominantly "white Americans") was asked to stand up if they would be happy to receive the same treatment as the black population is generally treated. Nobody stood. The question was repeated, yet nobody stood up.
It was then pointed out that every audience member obviously knew African-Americans are treated worse than white people in American society. The question was then asked why everyone was willing to accept the situation and allow others to be treated that way. Silence.
If you find yourself wondering why a group is complaining of how they're being treated, you can ask yourself a similar question.
Are you willing to be treated the same way women are treated in society?
Are you willing to be treated the same way the poor are treated in society?
Are you willing to be treated the same way indigenous people are treated in society?
Are you willing to be treated the same way people with disabilities are treated in society?
Are you willing to be treated the same way LGTBQ people are treated in society?
And, if you're not willing to be treated that way, are you working to change the status quo for everyone's betterment?