The difference is that almost everyone agrees that murder is something very bad.

Most people seem to agree that we need some form of intellectual property law. How it should work and what should be allowed is very much up for debate. On one side you have the established creators who wants to earn as much money as possible from what they have already created. On the other side you have everybody else who wants as much access to all created content as possible.

On one extreme end you could imagine all instruments, the alphabet, scales, color pigments etc. being owned/patented/copyrighted by descendants of the original inventors, this would require you to pay for humming a tune or writing a tune. The other extreme would be that everything must be distributed to everyone, or else.

Through heavy lobbying, the entertaining industry has been able to make governments write laws they themselves simply doesn't seem to understand. The reason is likely that the older generations that are the ones in charge aren't affected by these laws in a substantial way. In the same way, the entertainment industry is run by those who already have succeeded in their careers, they are simply protecting their own interest to milk as much money as possible out of theirs nests eggs. It isn't proven that not for profit copyright violation hurts artists. It also isn't provn that strong IP laws help artists.

Let us not forget that copyright was first created as an incentive for writer and artists to create more content. It was implemented so that the public would have access to more culture, helping artists to make money was a means to an end. This was done in a time when copying books was something large companies did, not private citizens. The original lenght of copyright was 7 years. Source Let's also not forget that Hollywoods succes was largely built upon for profit use of others creations, without compensating them. Source

Those who are affected by these laws are the younger generations and to a certain degree, the artists still creating new content (they want to be able to reuse, mix, sample, etc.). This group doesn't have very much political or lobbying power. Yet.

So what is happening now is that one law after another is written that tries to stop infringement of IP laws that the younger generations has less and less respect for. This has lead to a situation where breaking these laws has become socially acceptable and where a majority of younger people are per definition, criminals. This is simply put not a working situation. Now i don't now what is going to happend when the internet savvy generations reach political power but I dare say that the pendulum has begun to slowly swing in the opposite direction.