I kind of hate when people say this.
Instead of trying to derail the struggles Black people have with whites, how about presenting your own struggles as the legitimate issues they are (or possibly are, because some people will derail because they think blue socks are oppressed by pink socks)
Yes, its a tactic to use the ongoing problems between Black peoples and whites as a means to white-out other people’s oppressions; however this is usually not the fault of Black people but the fault and intention of those be they groups or individuals, who are actively perpetuating the oppression/problem.
Black people’s experiences and struggles are not less important because you feel yours aren’t getting sufficient air time.