You mean the one sentence out of all that? Well its because he sucks. and the oscars are a joke, and I'd like to perpetuate that as much as possible. Especially the oscars are a fucking joke part.
I singled out that part because it's a cheap shot and I'm sure you would afford the actors you like a hell of a lot more courtesy than that. He's done some weak films and mediocre acting, not going to deny that. But you could argue the same thing for any of the guys in this category (yes, even DDL), and I think it's bullshit to make an offhand comment like that and expect it to be accepted as a piece of thoughtful criticism. Frankly, he gave a great performance, and you trying to use him as a justification for your hyperbolic hate of a superfluous awards show is almost laughable.
No one is making you pay attention to the Oscars or post in this thread. Your tastes don't align with the Academy and that's fine. But no one really wants to hear you screaming from the rooftops about how above the whole thing you are. None of us are stupid for liking certain films, and the Oscars aren't a joke for awarding them.