Most ancient Western philosophy is predominantly written by men and many of them were not “people of colour”, although it depends how you…
Well, I’m not sure what sort of answer you’re looking for to that question so if I have to be brief I might not give the response you want. Stoicism has a long history of political action. Social justice is one of the cardinal virtues in Stoicism — you can’t be a Stoic without seeking social justice. But because it pertains to things outside your direct control you’d pursue it with what Stoics call the “reserve clause” in mind, accepting the outcome without becoming frustrated.
Most ancient Western philosophy is predominantly written by men and many of them were not “people of colour”, although it depends how you define that term — it’s a modern racial construct. So we shouldn’t be surprised as Stoicism originated in a culture very different from our own. There are, however, quite a few modern female authors who write about Stoicism. And (this is a separate but related topic) the Stoics were explicitly advocating for certain types of equality between men and women in their writings, perhaps from the outset, based on the surviving evidence.