People are not blocked from LSAT prep courses because of race. On the other hand, those who have insufficient financial resources are blocked from using prep courses that they cannot afford. It is these individuals, the ones who are at a quantifiable competitive disadvantage and lack access to competitive resources, who should receive extra consideration from schools.
Bingo! Let me shorten my argument for everyone who doesn't seem to get what I'm saying.
If you're an undergraduate student, and your family is poor or working class, and you're not working full-time, where do you get the financial resources to shell out $1,500 for an LSAT prep class? Can someone find an LSAT performance breakdown for me on minority peformance based on on poor, working-, middle- and upper-class backgrounds?