The seed oil thing in particular isn't really backed up by current research

June 22, 2022—While the internet may be full of posts stating that seed oils such as canola and soy are “toxic,” scientific evidence does not support these claims, according to experts. Guy Crosby, adjunct associate of nutrition at Harvard T.H. Chan School of Public Health, was among those quoted in a May 31, 2022 Consumer Reports article who pushed back on the idea

https://www.hsph.harvard.edu/news/hsph-in-the-news/scientists-debunk-seed-oil-health-risks/

If you are looking at plant-based meats as that video seems to be, there is some degree of evidence showing that it still comes out ahead health-wise compared to animal meat . That being said, aiming for more of a whole-foods plant-based diet is of course even better health-wise