Turing had about as much to do with real world programming as Alonzo Church so I think that’s equal if you really want to keep score. But there are other famous names in the history of computer science who did support functional programming, eg McCarthy or Backus. And there are “real world” programmers like John Carmack who advocate applying FP techniques to their programs.

But this is a stupid thing to argue about and not relevant to this thread.