I think the issue is a little more nuanced than many people think, and there are many factors to begin with. 

Most available seed oils are chemically extracted and treated. This is a messy process that leaves traces of toxic chemicals behind. 
Some seeds treated this way are not even naturally useful as food, like cottonseeds. 

Many seeds raised for oil are GMO which is usually done so crops can survive insane doses of herbicides, which again come through in the oil and are so bad for you. 

But other seeds which are naturally food, raised without sprays, and their oils are MECHANICALLY extracted, have been part of traditional diets for hundreds or thousands of years. 
I disagree with those who call THESE oils poisons. In my experience they do tend to be the same people who believe all plant foods to be bad for you. 

And yet there is still the point that animal-based oils may be better for you than plant-based oils. 
This doesn’t mean wholesome seed oils are BAD, just that animal oils may be better. 

Furthermore, many people use a plant oil to cook at far too high a heat for it. Understanding smoke points is key. Olive oil should never be used to cook food, but coconut or sunflower oils are high heat oils and just fine. Most animal fats are good for high heat cooking (though for best results, butter should be clarified = turned into ghee)

What do I do?
Cook almost everything in butter or bacon fat and RARELY use expeller-pressed high-oleic organic sunflower oil. 

TLDR if you would eat a seed as food I don’t think there’s a problem using the oil as long as it was mechanically extracted.

Nostr gonna hate me now lol 

 based 

 As someone who's been cooking my entire life, I definitely agree with this take. All of the nasty, chemically processed seed oils are definitely not that good for you. But anything that you would naturally eat as a food anyway, as long as it's mechanically extracted, like you mentioned above, is just fine. 

 As with most things, there is usually some form of nuance that memes lose. 😅