I have been. You are referring I suppose to Brocélien. It is an old forest but not in any way wild. (Sa histoire: https://fr.wikipedia.org/wiki/Forêt_de_Paimpont#Histoire). By "wild" I mean "untouched by man". Those places are worth saving, but there are not very many remaining, and certainly almost none in continental Europe. We should respect our forests and other open spaces, but some windmills is much less of a problem than the alternative.