I don't know that I'd say that, like I who to blame for WWI is a very contentious subject and ultimately I'd say that the blame does rest on the German leaders, including the Kasier and German General Staff, but to pretend France has no culpability is a little disingenuous. I'd say that WWI was pretty much every European country going on a genocidal rampage on their neighbors, just because the French weren't very effective at keeping it on their neighbors soil doesn't mean they aren't responsible.