In the old days it was "most linked page with those keywords," right? So if you searched "gay man" and got a bunch of gay porn, is it necessarily google's fault that the internet is more gay porn that it is resources for gay men to discuss LGBT issues? Is it google's fault that news agencies more typically report on crime by black people than white (or that black people are more likely to be convinced/arrested in the first place?)
I think Google is responsible in 2018, now that they offer extremely tailored results. Duckduckgo, maybe not. But if Google is going to say "we're going to show you listings for restaurants in SF in your simple 'restaurants' search because we know you live in SF," I think they should also say "we're going to show you results for LGBT resources when you search for 'gay men' because nothing about your query indicates a desire for pornographic content."