The highest thing on the chart is beef which is 99kg of emmissions per kilogram of beef, to make up for 1 hour of a single private flight it would require about 20 kilograms (44lbs) of beef. Now throw in the fact that there are thousands of these flights going through multiple hours of the day and hey you can see what is the way larger problem paticularly due to the fact that these flights aren’t benefitting anyone where as the beef actually feeds people.
But im curious why is it more important for you that billions of people immediately change in the way you view as better (so many peoples entire livelyhood is invested in the beef industry paticularly because there are so many byproducts that are also useful, leather, bonemarrow, glue ect.) rather then the few hundred thousand making a small change that barely effects them at all (this change is only billonaires learning to take public planes like the rest of us)?