Illegal? There may be scrutiny in a monopoly context, but there is no law that states that search results have to be fair and equitable.
How could they even be? For example Amazon might only stock four of six brands of video doorbell, so they're not going to be able to return neutral results.
How could they even be? For example Amazon might only stock four of six brands of video doorbell, so they're not going to be able to return neutral results.