XRP is even worse than many centralized "shitcoins". It doesn't have an incentivization mechanism for validators. Without any kind of reward for securing the network, the XRP Ledger would be extremely-vulnerable against external attacks. I mean, who's going to voluntarily run a validator node for XRP? On top of that, Ripple controls the UNL (Unique Node List) which is a list of trusted validators accepted by the network. If you want to run your own and become a part of the network, you're going to need approval from Ripple. Or at least, get your node inscribed on that list.
The USD is a better and more decentralized cryptocurrency than XRP. That's the level of the joke that it is. XRP fanboys won't give a damn about this, so they will keep buying no matter what. Their demise will come soon. It won't be long before XRP fades away into oblivion. At least we know Bitcoin will survive. And that's what matters. 
XRP has already failed, no matter what bagholders tell you. Do not look at the USD chart, look at XRP/BTC and you shall see how much of a failure it is.