Re: Linseed oil: paint vs. ink
it all depends on the particular oil. Cheap linseed oil one gets from Home Depot and/or Artist Oils from yester-year are often acidic and will make paper degrade over the centuries. However.... the same type of oil has been used for printing / printmaking since ~1450, and the paper has held up just fine.
Modern Artist oils are not so problematic. A highly refined linseed oil is typically ph neutral, and can be of archival quality. I make my own inks using it and natural pigments. Many pieces were printed 45 years ago, and show no signs of deterioration.
"Political Correctness" is just another way to muzzle free expression