Let's avoid making another thread to discuss things that already discussed in other places.
By the way, it's not only the XRP that are struggling right now even the other Altcoins are not safe with the ongoing Red Market today.
Which makes the price movements of XRP not really a special case. The lines indicating the movements of the prices of XRP as well as ETH, BTC, BCH, LTC, EOS, and so many more are moving in unison. One goes up and every other goes up as well. One dives and the rest will also be diving.
As far as the charts are concerned, it is only Tether which is moving up and down fully independent from the others. But since that is USDT, it is essentially not really an altcoin.