How much efuels/biofuels/hydrogen/methane/SAF .. can we actually produce realistically?

Sorry for posting a 3rd question. The book I read also claims, that replacing aviation fuels, fuels for shipping, fuels for agriculture as well as hydrogen for chemical plants would need prohibitively much renrewable energy (as efficiency will max. be 40%). It claims that it is impossible and just a way of distracting from necessary social change. Do you have any numbers confirming or challenging this view (and sources)?