There's nothing wrong with horse meat.

There are far fewer controls and standards for horse meat in much of the EU, meaning a lot of the meat which was being passed off as beef could potentially contain dangerous drugs not fit for human consumption.

If it's properly regulated though, you're right that there's no problem with it.

Potentially, there's a problem with any meat if you can't have confidence in where it came from. (British buyers didn't know they were buying food containing horse meat. They were being duped.)

If the beef isn't beef, you can't really count on any of the other food integrity items - like freshness - to be accurate either.

Horse meat's fine, I've had it... but it's unacceptable and potentially dangerous to have it sold as beef.

Who said there was?

unless it is sold as beef , then it is a scam since horse meat is quite cheap ,beef is not.