Which Is the Best Standard-Form Representation of the Following Argument

Which is the best standard-form representation of the following Argument from Principle?
Black Lives Matter (BLM) protesters have been working to promote awareness and change in response to unjust policing practices that have resulted in wrongful harassment, injury, and death for many people of color. So when groups of counter- protesters push back against BLM by yelling "All Lives Matter!," this has unsurprisingly led to fierce debates about whether these White counter-protesters are doing something racist.
An action is racist if it is based upon false or unjustified beliefs that contribute to oppression or subordination of some racial group. This principle provides a resolution to the debate: chanting "All lives matter!" is indeed racist. White counter-protesters who yell "All lives matter!" at a Black Lives Matter demonstration reveal that they believe that Black people are just whining or making up problems. This belief is unjustified and clearly contributes to racial oppression by perpetuating an unwillingness to face up to serious injustices.

A) 1) BLM protesters have been working to promote awareness and change.
2) Counter-protesters push back by yelling "All Lives Matter!"
So, this has led to fierce debates about whether yelling "All Lives Matter!" is racist.
B) 1) Yelling "All Lives Matter!" in response to a BLM rally is racist.
2) White counter-protesters who yell "All Lives Matter!" at a BLM demonstration believe Black people are just whining or making up problems.
So, this belief is unjustified and clearly contributes to racial oppression.
C) 1) BLM protesters have been working to promote awareness and change in response to unjust policing practices.
2) White counter-protesters who yell "All Lives Matter!" at BLM demonstrations believe Black people are just whining or making up problems.
So, people who yell "All Lives Matter!" contribute to racial oppression.
D) 1) An action is racist if it is based upon false or unjustified beliefs that contribute to oppression or subordination of some racial group.
2) Shouting "All Lives Matter!" in response to a BLM rally is based upon false or unjustified beliefs that contribute to oppression of a racial group.
So, shouting "All Lives Matter!" in response to a BLM rally is racist.