You cannot survive because Google always shrink more and more. We remember when no ads on top, now on products all ads. Little by little only ads or almost zero clicks on organic search because so far down.
Only way 2survive is to have more search engine competition. That should be main focus of webmaster, maybe google then changes.
">>Because advertising works best (and attracts the highest rates) when it runs alongside content"
On Google not alongside but way down where receive no click. Semantics no matter when clicks are very few or zero.