But they are already doing just that. I watched a few Youtube videos related to Quantum Mechanics and my recommended queue was flooded with videos full of pseudo scientific nonsense.

It took me considerable effort in having these weird videos no longer recommended to me. I think we can just be honest about what caused it, it's a lack of intelligence in the sorting algorithm, that currently isn't able to distinguish between true and false statements.

I understand there are areas where this line is vague, but if I watch a few videos about astronomical events, why am I getting recommendations about aliens visiting earth?