Especially as piracy has its own costs: VPN (French authorities do detect bittorrent), storage, some Jellyfin or Kodi host, some time to manage the whole *arr setup.
The moment legal access to a whole world's worth of movies becomes cheaper and easier than that, piracy becomes unattractive. That was the way Netflix was perceived in its golden age... No longer.
In that 'golden age' of Netflix, getting a Netflix subscription was a much better choice for loads of people. But now it seems to be swinging back the other way again. It's just so frustrating, because all these content owners actually had a good-enough solution to most piracy, and they ruined it with their own greed.
Do they know what you are downloading though? I still use it for a lot of stuff that’s legal. How do they go after people (I guess you imply they do)?
And it is really easy to track the IPs, as it is fundamentally part of how bittorrent works that everyone in the network has the IPs of the other participants. So a VPN is advisable.
How do these sites fund themselves, anyway? Ads, I guess? Tho not sure what ad networks will show ads on sites that are 100% copyright infringement.