Well then why is he randomly dragging her and why has he gotten more press in the last 2 days than he has had in the last 2 years?

He isn't randomly dragging her. She is the new girl. Memes about her are getting more and more frequent. The fact that there is controversy about her ethnic background is increasing it as well. The picture Snoop instagrammed was no worse than the barrage of jokes that have come her way the past few months. Marlon Wayans in particular has been extra critical of her.

And Snoop has been in the news for plenty of different things the past two years. Do you remember when he changed his name to Snoop Lion? It was everywhere. The man doesn't need Iggy for anything. This wouldn't have even been news if Iggy didn't feel the need to respond and make it what it's become. So in reality its Iggy using Snoop. He's just responding to her hurt feelings. If she would've dropped it and laughed or ignored at the joke, we wouldn't be having this discussion.