Why would it make sense to kill senescent cells when we know it could kill the patient? [0] IMO it makes more sense to apply the Paget's "seed and soil theory"

Why would it make sense to kill senescent cells when we know it could kill the patient? [0] IMO it makes more sense to apply the Paget's "seed and soil theory" of cancer research to aging, and work on biological mechanisms than on a crude approach like "killing cells". [0] https://en.wikipedia.org/wiki/Tumor_lysis_syndrome https://en.wikipedia.org/wiki/Tumor_lysis_syndrome