Imagine what things would be like on the Internet, if the law against internet malware was lifted. Well, malware would be allowed on the internet for one thing. So anti-malware would implicitly be made illegal for another. Anti-virus software would be banned from the internet, so users would no longer receive updates or protection against new malware.
People would no longer be allowed to get their computers scanned for viruses or take their computers in to get their computers fixed. It would implicitly put computer technicians out of business. At least the ones that dealt with malware, which would mean all the current ones that are officially in business today.
It would mean the end of users receiving warnings about malware, since threats would no longer be detected and harmful sites would no longer be identified as harmful. Virus software would be allowed on the internet, so users would be allowed to get exportable malware and attempt to import it to places on the internet, hoping to spread them to other people's computers.
I must say that would be pretty bad, and there are other things that would happen if the law against malware was withdrawn. Things that I didn't think of when I was first inspired to write this. All internet users would be at risk of having their personal information exposed. And don't even get me started on the sorts of things that would happen to people if it really was okay to have viruses on the internet.
On top of that, many of us internet users would feel that it was no longer safe to risk getting viruses on their computer, just so that they could access the internet. The internet would be significantly less active. People would no longer use the internet to check e-mails, play games, read and edit on sites, and all that sort of stuff.