This is a classic Kafka-trap, and I see this rhetorical payload delivered more and more these days.
"If you have a problem with changing the status quo, then you're in power and thus deserve to have the status quo changed on you."
"If you have a problem with changing the status quo, in a situation where the change would make you lose something, take extra time to examine whether it was justified for the status quo to give you that thing in the first place."
Which is good advice.
Many times it is harder to see what is currently going on; so, if you want a more blatant current example, right now, the system is keeping undocumented immigrants poor and uneducated on purpose.
The system doesn't have motives. Individual behavior can give rise to systemic oppression with no top level design goals needed.
If we take a look at Black people specifically:
Black sounding last names are half as likely to receive callbacks for job interviews. Black people are more likely to be arrested, convicted, and receive longer sentences for committing the same crimes as White people. It's harder for Black people to find housing. Its even harder for them to rent vacation properties.
Black children even receive harsher punishments for the same infractions in elementary school.
All of these things put together mean that yes, they are systemically oppressed, and the system is currently keeping them poorer and less educated. Exceptional individuals will overcome this oppression, but reinforcing feedback loops ensure that if something isn't done to break the cycle, it will continue, and as a class Black people will always be at a disadvantage.