Earlier quoted context omitted.
Replacing large swaths on single story single family houses with multiparty rentals does not necessarily involve any high rise buildings. Paris and Barcelona have proven that very high density can be achieved with four to six stories or less.
are you suggesting that Paris is [more] affordable for software engineers? Quick check shows that the prices in Paris are about E10K per square meter - basically SV prices while salaries as far as i know are significantly lower there. I have only vague idea about Barcelona - quick check shows like it may be on the scale of E5K per square meter (it was $100K per 2-3 bdrm 20 years ago, so 3x-4x today seems reasonable)…
However, if the prices in silicon valley were, say, 30% lower than they are now due to zoning which allowed more housing, would that constitute as evidence? You could still say that the "prices are high, higher density housing doesn't work!" - even if the higher density housing would've decreased prices by non-trivial amounts.
In any case, it's weird to see people objecting to basic supply and demand when it comes to housing.