Rebecca, thanks for checking out this essay. I’m going to offer an unsolicited response to one question you kinda raised in your comment: how best to undermine a lethal ideological system and at the same time stay with the feelings of being in this present moment.
It seems to me that you mention part of the solution in the situation: being in the present moment. Or if I might rephrase that: being present in the moment. One has to be “present” or engaged or aware of their surroundings and what going on around them. When you’re aware, you’ll find that the opportunities to speak out about racism will present themselves.
Your response doesn’t have to stop people in their tracks. You have to discover what works best for you.
We all have communication styles that are suit us better than others. The thing is to discover which one(s) works best for you in terms of communicating your ideas. If your personality lends itself to being bombastic, be bombastic, but judiciously choose the circumstances in which to be bombastic. If dry humor is your thing use humor, delivering a pithy one-liner to someone committing a racist act is all that you need do.
But only respond when you feel it’s appropriate. If you’re a 5'2", 90-lb. woman, I’m not encouraging you get in the face of a guy with a linebacker build. That probably wouldn’t bode well. But circumstances will arise when you’ll have exactly the right words to let someone know that their deeds are unacceptable and aren’t going unseen.
As for writing . . . start with what you experience, what you see, and then tell readers how you feel. That trio makes for a great place to start.
I hope that makes sense. Now start writing! Even if it’s only for yourself. 😉