For the background to this RFC, please read the sections "lead and background" and "Domestic immigration laws are not about Right of Return" on this talk page. Two weeks ago, I started working on renovating this page because I thought it was in a sorry state. My work went unimpeded until I moved the huge "By country" list to Nationality law in this commit.
That caused the editor @Icewhiz to do a partial revert and return to this article countries whose immigration laws he claims are so forthcoming that they guarantee a "right of return." So now the same content is duplicated on both the Nationality law page and the Right of return page. I don't understand the editor's arguments at all here. I don't think there is any material difference between the Finnish Aliens Act, which it didn't return, and Article 116 of the German constitution.
I believe the editor is misguided and is juxtaposing domestic law and international human rights law. The topic of this article is clearly the latter. The right of return principle is associated with freedom of movement and is completely orthogonal to ethnocentric immigration laws which embodies ideas from nationalism.
In addition to that, the editor has not provided any scholarly sources which associates, for example, Article 52(5) of the Polish constitution with the right of return principle. Wikipedia is "connecting the dots" for the reader in a bad way. No scholarly source has been provided to show that this constitutional article means that Poland is an example of a "Country with laws conferring a right of return." In fact, all countries provide a right of return by virtue of readmitting their own citizens so the name of the section is wrong too.
Honestly, I think this is a clear-cut case, but the editor refuses to compromise (see the discussion) so I had to make this RFC. I hope people who are interested in international law will show up.