I think your point is valid, but also keep in mind that we just generally live longer than all our ancestors did, and they did a bunch of things we now consider

I think your point is valid, but also keep in mind that we just generally live longer than all our ancestors did, and they did a bunch of things we now consider not very good (e.g. working fields without sunscreen) because they generally didn't live long enough to develop cancer at the rates we are seeing with our current life expectancies.