You are just overreacting.
She's #63 & #119 on iTunes, she's about #40 combined.
That's not very bad. And this happened for some OBVIOUS reasons.
1. There are still 9 The Voice songs that will fall soon, plus some new releases (Bad rihmix, Miley & Selena's new singles, Cassadee's...)
2. The little promo that was on the main page (under the singles section) is there anymore, so Crazy Kids remix lost some exposure. Yet the original stays stable.
Plus she's still increasing (very low, but still) on radio. She's getting a nice jump on HOT100 today/tomorrow too.
+6.6M views.
Radio Adds
Pop
4 KE$HA Crazy Kids Kemosabe/RCA 103
Rhythmic
1 KE$HA Crazy Kids Kemosabe/RCA 13