You're right for once, mate: the situation indicated in the title is literally not real (80% of NYC school grads who go to the state's community college system need remedial courses, not 80% of NYC school grads in general).
http://newyork.cbslocal.com/2013/03/07/officials-80-percent-of-recent-nyc-high-school-graduates-cannot-readUN fucking real.
that explains a lot about younow I understand why you're incapable of understanding the articles you cut and paste onto this board. Still no explanation of how you can't understand the videos that you post