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No one has the ability to make logical deductions about the world in the manner you've done in this thread.
Cancer is just a tough nut to crack. While a blanket cure remains a pipe dream, there is lots of promising research and life expectencies keep going up.
You know, a cure - like what they pretended the vaccine was that somehow was forced through the almost impossible system of medical approvals that has stalled real cancer research for decades.
And, of course, medical treatments can be very valuable even if they fall short of a "cure".