The left's focus on race, as noted in the query, often stems from a historical and political context where racial issues are used to address systemic inequalities and push for inclusion, per the Brennan Center for Justice. Some argue it counters the right's economic agenda by highlighting social justice, as seen in Quora discussions. This polarization can intensify during elections, like 2016, when racial resentment influenced voter shifts, according to Carnegie Endowment research.