I purchased it, and you're taking it away? Then either I didn't actually purchase it (despite the word appearing in the notice), or you're stealing it from me.
Which is it, Sony?
The legal reality is that you probably purchased a license, tied to your PlayStation account, and revocable at any time for any reason. You don't buy a movie, you buy access to watch it as many times as you want during the period in which it is licensed to you. This is, of course, bullshit; this doesn't or can't apply to a physical DVD, or even a DRM free digital copy, so it is a measurable step backwards for consumers.
This isn’t that difficult. You purchased the ability to use it while they let you, and yes, it was in the terms.
Thank you for making a rare valid use of the term "stealing" in regard to intellectual property.