[1] Yes, Wikipedia confirms that affirmative action is a thing societies across the world engage in it to try to have a representative cross section of the population engaged in critical aspects of society. And yes, in America since the practice became enshrined in law that meant it has cut into the edge that white men have. But if in the future white men become under-represented for whatever reason, I would hope that it would work in the reverse to help give a boost. And in-fact this is already being seen in college admissions for white men vs. asian americans and females. Which leads to your second source:
[2] The article points out that white men are underrepresented in college but the reason given is not affirmative action, but rather cultural. Many young men just are not making the choice to go to college (for better or for worse). It even says in TFA that "The Wall Street Journal reports that many colleges are putting their fingers _on_ the scale for male applicants", which is a direct refutation of your point.
[3] I could file a lawsuit against the state that says politicians are colluding with martian men to keep taco prices down. That doesn't make it true.
[4] Well I have never seen anyone _cite_ an anecdote so...
EDIT: Spelling and grammar