Even assuming ripping is legal (it usually isn’t ,though it should be), the effort required is significantly higher, the cost is significantly higher, and at least for TV shows, you usually suffer from huge delays as you wait for the season box set to be released. This is even assuming they bother to release a bluray in 4k with HDR.
Netflix and other services (assuming it even has the content you want) have fixed these issues, with the massive downside of no 4k, lower bitrate, and no ownership at the end of it.
Piracy, while more illegal, has the content you want, at 4k, usually a higher bitrate, with minimal effort, no cost, and no delays. Now that I’m employed, I don’t pirate music or games anymore, because the services offered are good enough that piracy isn’t worth the effort. But for movies & TV shows, the services offered are simply terrible.
System wide ad blockers can’t block a lot of ads, namely same-domain ads or those that are built into the html. Much rarer than the external page kind (DNS ones) thankfully.