I doubt earth has anything that anyone might want. Water, organic chemical, hydrocarbons are all pretty common in the universe. Certainly any civilization that has Faster-Than-Light (FTL) travel could gather these without messing with our tiny blue dot.

I would have to assume that any FTL aliens that show up are coming to be entertained. We can only hope they would be interested in our exotic cultures, quixotic behaviors. Perhaps our ability to do stupid human tricks, or act as pets. It could become a fashion statement where no alien household could be considered complete without a few humans as pets.

That's how it goes if we are lucky. If not, they like a good hunt and blood sports.

Either way there isn't much we can do about it. We can't fight them and we have pretty much forfeited any moral high ground so our ability to persuade them is likely to be limited. Given how we treat our fellow humans and our long tradition of exploitation of 'lesser animals' any argument based on morality might not be taken seriously.

Humans have maintained other humans as slaves for most of our history and slavery isn't gone entirely. We kill and make war over the slightest provocation, real or imagined. Hunting for fun, bull and cock fighting, and bear baiting have been the norm for most of human history.

The one thing most heartening about the subject is that the universe is huge. Even at FTL speeds of ten time light it would take thousands of years to cross a single galaxy. Seems a very long way to go to get resources you can find pretty much anywhere and to meet, or beat on, a species still so primitive it can't control its own breeding and get serious about resource use.