> Let’s send a message to YouTube that they need to recommend responsibly...
I don't think there's such a thing as responsible recommendation at the scale YouTube operates at. At least not in the way people think by responsible anyway.
Eventually, you serve the tools instead of building them...
It's not irresponsible because people see videos they would rather not. It would be irresponsible if someone logged in to a child's account and see's something inappropriate, and it would be irresponsible to continuously allow illegal videos to stay up (both of these cases happen and need addressing). But saying your preferences don't align with how they determine content to be similar to each other doesn't make it irresponsible.
Catering to preferences like that is not a responsibility. It might make the product better or worse for you if they don't, but it's not an obligation.
Oh I know, "censorship!" etc... but at Googles scale, as you point out, what else shall we do?
I do rather throw that ball back into your court. At that scale, they are regulatable :D
The key to your statement is the word "related". How do you determine whether two pieces of content are related? Because Youtube has found a way which works for them and seems to work in the majority of cases.
Do we know that to be true? failing for what percentage of the user base? it's obviously imperfect.