If Buying is not Owning; Does Piracy Cease to be Theft?

In 2000s games started a DRM trend of online activation that cease to work when servers are down making customers unable to use the games they legally purchased. This is an obstacle to art preservation

There are people fighting against this problem. I don't agree with everything they say. I'm a strong believer of intellectual property and free markets. What I suggest is to have these older unsupported versions of games (or any other art) as abandoned property.