When these sites began, they adhered to their terms. They changed the terms since then. I joined Facebook in '07, YouTube in '07 and it was different.
And if they're going to delete one user's content, they need to delete everyone else's with the same content. But they aren't doing that. They ban one user and leave the other user up. They're hypocrites.
They're censoring us and people like you who aren't being affected by it don't care because it hasn't happened to them... YET. Just wait.