I think this is exactly the wrong thinking about taxes. And it's abused by pundits and politicians by making people spend the same money many times in their head. I mean, you can't be simultaneously outraged that "your tax money" supports elite schools and abortion clinics and the military; you don't pay that much of a tax. In fact, an average taxpayer's contribution would amount to buying some office supplies for one, small government building.
Money is fungible, and by the time enough is collected to fund a school, there's no "my money" in there anymore, much like if you take a fistful of sand from your yard and throw it on a beach nearby, there is no more "your sand".
The opposite was recently litigated - that top universities were inequitable because they didnt sufficiently consider scholastic achievement:
https://www.nytimes.com/2018/09/26/us/politics/yale-asian-am...
https://www.theguardian.com/us-news/2019/oct/01/harvard-ruli...
They don't want equal opportunity, they reject that something like that even exists as opportunity is always unequal. Only transformation of society to communism in the end will 'solve' those problems.
So yes, in their opinion all of this stuff is evil and bad and should be replaced with ... something better. Of course they couldn't really tell you how that would look like.
Equal opportunity does not imply equal outcome—even for a perfectly fair school. Quite the opposite! In fact, I’m glad I got rejected from several schools... their high bar helped guide me to something that worked better for me anyway.