Taking account that this is unproven in humans -- it's enough for me to avoid soybean oil, as cooking oil choice is not very important for my palate. That said, which oils would you use for frying and baking? Most high smoke point oils are, like soybean, polyunsaturated, so I'd guess that they could have some of the same (proposed) negative effects. Bonus points if the alternative is widely available (I see potential…
It degrades less with heating than other oils and it has a very healthy fatty acid profile.
For salads or other food that is not cooked after adding oil, extra virgin olive oil may be preferred, because it contains other desirable substances besides fatty acids, but heating will degrade those, so for frying and baking olive oil does not have any advantage over the much cheaper high oleic sunflower oil.
Besides high oleic sunflower oil, there are also other kinds of oil that are claimed to be "high oleic", which should have similar frying properties, but I do not have any experience with those.