It’s rarely such a simple tradeoff that only two things are being optimized. Modern humans live way longer than wolves for example despite being of similar body mass. However that’s fairly new in our evolutionary history as wild chimps for example cap our at ~63.

Cancer is extremely rare as a cause of death in wild animals. Again is more common but late enough that reproduction has produced multiple offspring.

Energy expenditure isn’t something we’re concerned with but drives a great deal of evolutionary optimization.

We all get cancer every day, and our body destroys it. When it finally fails to identify one, you get a tumor. If we’re doing something that massively increases cancer rates, we’d likely need a daily pill of some kind, or we’d be getting screened for cancer twice a year or something.

> one cause of aging is probably an evolutionary compromise between longevity and not getting cancer

Yes, and proteinopathies, and likely lots else besides. We probably don’t even understand the failure modes that aging protects against.