Isn't that a point in the rewrite's favor? You don't have to port everything to gain a lot of the benefits.
I agree with this. But just saying Firefox has X millions of lines of code doesn't say anything about the possibility for Linux to be ported to Rust.
I never said that. My whole premise is that you can't say anything like this by just saying code count on two very different projects. Maybe you didn't read my comments properly.