Ask HN: Product managers making products worse on purpose, why?

I noticed that searching for a specific item on Amazon would always net me the exact wrong results, causing me to purchase the wrong thing (profit motive) but then abandon the shitshow of a platform.

I noticed that Google Shopping and Walmart are doing the same, I can search for (e.g.)4.0 and get results for 3.0, and it's not by accident.

I can imagine the people implementing these (predatory) changes are not stupid, mistaken or fooled, but are doing this on purpose knowing full well they're pissing in the well that they will then be forced to drink from.

I only ask, why?