Amir, I'm at the end of your forum. While you do a great job at using references to music theory and your own backstory to make a case for music's role in social justice, you haven't substantiated your claims with credible research.
The idea that protests void of music will lack meaning and momentum seems a gesture toward exigence. Though, I'm not convinced, yet, of this claim. Where has it been evidenced that protests without music fail? There have been multiple silent vigils and kneeling in response to George Floyd's death and they've all been effective in raising awareness and acting as a social disturbance. How will you grapple with this counter-fact in your position paper?
If protests can exist and function without music, if social justice efforts can be accomplished without it, why should anyone care if there's music or not? What does it contribute? What are the specific risks of musicians disengaging in social justice efforts?
I think the anecdotes that you rely on are useful, but, thinking toward the position paper, consider integrating information from credible stories that validates and gives some authority to your anecdote as substantiation for the claims you're making.
Also, moving toward your position paper, it will be necessary to bed your line of inquiry into a stasis point that promotes exigence regarding this topic. Right now, you're working in the stasis point of value/quality -- largely making a case for the value of music. I sense, though, that you intend to work in action. Instead of exploring questions about what might be done to urge artists to act -- as there hasn't yet been a convincing argument established for the necessity of that particular line of inquiry -- you, might, instead, simply argue for the value of music in social justice efforts. These efforts do not have to relate to the plight of Black and Queer communities. They can certainly relate to other social concerns, such as to our national mental health crisis. Earlier, in your research, you'd archived in your annotated bibliography sources about how music had served as therapy. Return them. Maybe, in research surrounding that topic, there is an argument to be made about the necessity of music therapy or art therapy in treating certain kinds of mood or behavioral disorders. You could use the data about the steady climb of mental illness over the years and the exponential rise of mental illness onset by the COVID-19 crisis as a framework for your inquiry and to establish exigence.
Before turning in your final position paper, I encourage you to meet with a peer tutor at the university's writing center for tips on how to integrate my suggestions into your paper.