Nobody is asking for science to be done for free, most motivations for open access come from people that realize that the biggest stakeholder in all of this is

Nobody is asking for science to be done for free, most motivations for open access come from people that realize that the biggest stakeholder in all of this is the public. Grant agencies receive money from taxes and those funds are devoted to science instead of other public projects. That the output of this work is not generally available to the public is the problem. Most researchers will never feel this problem since their libraries will have access to the journals that they need. Publishers in general will just charge for access and not see the issue. It is only when you go out as a member of the general public and attempt to read some journal article, presumably funded by your taxes, that you will realize that you haven't had a voice in all of this.