Equity is a great concept - better than equality. It has to be invested in however. It doesn’t begin at college admissions. It also can’t be attained foolishly just throwing money at people.
If opportunity for all (generally, not perfectly equal opportunity, but generally so) is the goal, you have to provide better neonatal and postpartum care, childhood nutrition, parent and family education and strengthening, parent training in executive skills and social-emotional skills, promotion of delayed parenting (reduction in teen pregnancy), early childhood education including individualized child/family support when needed, quality schools, low class sizes in poorer areas, quality educators (means paying them) in poorer areas, capacity to address mild and moderate disabilities effectively as there tends to be more as a percentage among poorer populations,…. Pretty dang costly to commit to equity.