Why do so many things fall under the "Google" brand and company? Why not spin off some stuff to another company under Alphabet? It seems that "Google" means ad

Why do so many things fall under the "Google" brand and company? Why not spin off some stuff to another company under Alphabet? It seems that "Google" means ads, at least as far as revenue goes, so anything that makes money from ads stays with Google, but everything else goes. Obviously this wouldn't help OP, but it would let people use Alphabet Cloud products with a bit more ease of mind.