From factfinder.census.gov, year 2000, San Diego County
Median family income 53,438
Single-family owner-occupied homes Median value 227,200
And remember this was 2000, after the market had already been booming for 4 straight years.
In the mid 1990’s a median value single family home was absolutely affordable for a median income family. Saying that we will never get to that point again is a rather bold statement.