An egg gets 2/3 of its calories from fat, 1/3 from complete protien, and a trace
from carbohydrate. It is a near ideal ketogenic diet food. I doubt that any
palatable vegetable substitute would ever be nearly as good for you.
It seems silly to try to replace one of the most healthful food you can eat, but
billionaires need to spend their money somewhere. As far as meat using a lot of
resources, that is misleading. Ruminant animals like beef cattle are excellent
converters of low quality forages. They are able to thrive in desert areas using
solar energy (stored in plants) that would otherwise be wasted.
All the negative hype for GMOs and now we want to create synthetic meats and
eggs by ripping apart natural plants at the cellular level.