Only if you mishandle and abuse them. Doing that to vinyl records is going to make them sound lousy too. Both of them are fairly delicate.
>- CD's come in horrible plastic covers that break if you look at them wrong.
Those jewel boxes are easily replaced, because most of them are standard (the exceptions are weird ones, like the double-CD ones). The plastic boxes keep the booklets and artwork in pristine condition. On vinyl records, there's no plastic, only paper/cardboard, so the more you handle it, the more worn-down and beat-up it gets. There's no way to keep it mint-looking without simply never opening or handling it. With CDs, as long as you're careful handling them, they'll stay mint-looking indefinitely (as long as they aren't those stupid "recyclable" ones that are mostly cardboard without the jewel boxes).
The only advantage LPs have is that there's physically more space for artwork/notes. But that's not a big problem; in the CDs, it's just shrunk down to 1/4 its LP size. Get some reading glasses if you have problems seeing that.