It's much worse than the flu, it's a defective heart. The only way to survive is with a transplant.
Fortunately, Bitcoin is a voluntary monetary system. Those who feel their needs are being met with the existing fiat monetary system and prefer to continue using it are free to do so.
So our current system, what exactly is wrong with it?
The biggest issues are the fact that it's inflationary and debt-based. It's also controlled by those with political connections and used as a political tool.