That's a way too bold assertion for the very weak evidence behind it. The studies are mixed: https://en.wikipedia.org/wiki/Arachidonic_acid#Dietary_arach...

One study pointing in a direction in biochem can be safely ignored until it's been solidly replicated and built upon.

It is far from "loaded". 0.15g per serving is not "loaded", and is half the level of salmon for example, which is promoted as healthy. Omega 6 polyunsaturated fats are highly inflammatory. But our intake is almost entirely from "vegetable oil", not chicken.

Chicken and eggs provide by far the most arachidonic acid in the typical diet:

https://epi.grants.cancer.gov/diet/foodsources/fatty_acids/t...

That's because people eat a lot of chicken and eggs, and don't each much salmon. When deciding what to eat, the amount per serving is what matters, not how much of it the average person eats. And again, arachidonic acid is just one omega 6 PUFA, being specifically singled out for promotion by vegans because it is found in meat. The rest of the omega 6s are all just as bad, and our intake is almost entirely from vegetable oil. A serving of chicken has less than 2g of omega 6s in total. That's less than of the omega 6s in a serving of tofu.