Why is palm oil in everything these days? What did we do 10/20/30 years ago before it was ubiquitous? Has the need to bulk up products with palm oil arisen because of population growth, needing to stretch out yields more?
Note that there is nothing wrong with palm oil itself, it's just that the cheapest way to produce edible oil on Earth, is to grow palm oil trees in a tropical climate. Replace palm oil with another vegetable oil, and the effect on deforestation will be even worse, as we would need even more land to grow the replacement. Even Greenpeace is not calling for a boycott or palm oil.
We used partially hydrogenated vegetable oils: aka trans fat. It's a texture/spreadability thing for junk food and baking. Use of trans fats accelerated after the 1980's declared saturated fats harmful and they took its place. It didn't work out so well and now palm oil is phased in to replace it.