I get that it feels that way…but if you look at the actual statistics, it is still strongly majority white, majority middle income or higher, and majority parents with higher education students who are getting in to the selective colleges.
It is true that the pool you are swimming in makes a difference: we had collegekids applying from a very competitive (and over-educated!) region, with lots of high profile independent schools and nation-topping public schools. The pool of talent was so deep that even really accomplished kids could feel like underachievers. But in the end the competition was so stiff that our lot figured out that the only race they could run was their own.