GPL is just as bad as proprietary licenses in the sense that GPL makes the user worry about the licensing of some library they just want to use. MIT, BSD,… give the code user the freedom to avoid worrying about licensing bullshit. GPL meanwhile doesn’t really solve any of the problems you claim it solves because all it does is duplicate effort and the non-GPL duplicate is used in a lot of places where a single copy of the code could be used if the GPL-using author hadn’t stubbornly insisted on a disproven theory of how GPL will save us.