To say there "is not one cure" for cancer is totally incorrect. If you diagnose many forms of cancer soon enough, tumors or entire organs can be surgically removed. Via PSA testing and eventually a biopsy, I was diagnosed with prostate cancer in 2005. Spring of '06 I had it removed with robotic surgery and almost 10 years later I am completely cancer-free. So are thousands of other men who had prostate cancer diagnosed at its early stages. Another example is where they remove cancerous tumors of the skin on a routine basis in dermatologists offices with basically zero side effects and almost complete success.
Now, if we are talking about cancers where it was not seen/caught early enough, and it has "spread" (into the lymph nodes or other organs), yes the cure rate is much worse, because surgical removal is nearly impossible and they have to resort to drugs.
Good luck to everyone who is fighting these battles!