That might work with a birch, as it seems
all they do is fall down.
(Looking at the latest photo, it looks like a bunch of "brother" birches are headed towards the channel, as well.)
But I once tried to return a wind-blown tree to vertical from about only 10 degrees "off". (AAway from the house). I used a cable-winch of 4000 pound capacity, tightening it only one click twice a week. That "come-a-long" was at its maximum capacity, as each time, I could barely move the lever!
I later soaked the earth around it, but still never succeeded in gaining more than a few degrees—after six months of trying!