> Opensource doesn't mean open to contributions.
That's not entirely true. It's certainly the case that Ladybird is still under an open-source license, but the whole idea of the "Open Source" label was to move the emphasis away from having a free license to actually being open to patches in practice.
Not even the most extreme FOSS zealots (RMS, FSF, …) ever claimed that taking public contributions was ever a part of that.