I'm surprised that you would describe it as baseless, because the theories he presents are built upon the lifetime of study & research of the examination of human history and motivations.
It’s not bad, just not very valuable as an entire book to read. It’s mostly already covered in the final segment of Sapiens.
Homo Deus is certainly based on the author’s general wisdom and draws upon his study of history. It’s always hard to vet “futurists” to see who is worthwhile.