I don't recall seeing the community arguing strongly for re-writes. I see people who want to do rewrites for fun/education. For example, just because they love the language and prefer to work in it. In some cases people make the case for re-writing sensitive libraries in Rust, but I think a) they are not in general arguing confrontationally; b) they tend to have a point technically speaking. The missing piece is whether it makes sense long-term, with different pools of potential contributors etc.