The research has already been funded through taxes. The money made from journal subscriptions goes to the publisher, not to the researchers or their institutions. The reason why researchers publish in such expensive journals is historical (the journal has a good reputation and is thus widely read), not because they are looking to fund their research.
The journals charge researchers. I literally paid thousands of dollars to have my papers published in journals, who did little in terms of editing or typesetting, so that they could turn around and sell those papers to other people and give me none of the proceeds.
https://www.theguardian.com/science/2017/jun/27/profitable-b... https://www.theguardian.com/technology/2012/apr/22/academic-... https://www.the-scientist.com/?articles.view/articleNo/31858... http://thecostofknowledge.com/