I ask this because I think of the recent switch of Ubuntu to the Rust recode of the GNU core utils, which use an MIT license. There are many Rust recodes of GPL software that re-license it as a pushover MIT or Apache licenses. I worry these relicensing efforts this will significantly harm the FOSS ecosystem. Is this reason to start worrying or is it not that bad?
IMO, if the FOSS world makes something public, with extensive liberties, then the only thing that should be asked in return is that people preserve these liberties, like the GPL successfully enforces. These pushover licenses preserve nothing.
Coreutils has little commercial value to take can create a proprietary fork of. There is little value that can be added to it to make it worthwhile. The same is for sudo - which has had a permissive licence from the start. In all that time no one has cared enough to fork it for profit.
Not saying that is true of every project. But at the same time even GPL software has issues with large companies profiting off it and not contributing back. Since unless you are distributing binaries the GPL does not force you to do anything really. See mongodb and their move to even more restrictive licences.
The GPL is not the only thing that stops companies from taking open software. Nor does it fully protect against that.
Not does everything need to be GPL. It makes sense for some projects and less sense for others. Especially libraries as that basically forces no company from using them for anything. Which is also not what you want from a library.