> people complained about my choice of MPLv2, eventually someone started a competing library with a permissive licence and everybody jumped on it
Just because you choose copyleft (even weak copyleft like MPLv2) doesn't mean your project will succeed or be more popular. A lot of people (and especially a lot of companies) do prefer permissive over copyleft, and that's because they can built something proprietary on top, without being forced to give back. That's why they're ultra billionaire rich, and in comparison you're poor.
Software often wins because it's better. Copyleft favours the collective good, permissive favours the individual greed. In any case, all of these things require copyright law.
Just because you choose copyleft (even weak copyleft like MPLv2) doesn't mean your project will succeed or be more popular. A lot of people (and especially a lot of companies) do prefer permissive over copyleft, and that's because they can built something proprietary on top, without being forced to give back. That's why they're ultra billionaire rich, and in comparison you're poor.
Software often wins because it's better. Copyleft favours the collective good, permissive favours the individual greed. In any case, all of these things require copyright law.