Everyone is a thief... People will steal if they can(Everyone even your high school sweetheart). Simple really, make it impossible to steal.
You assume that everyone wants to be a thief, but that those who don't steal don't PURELY because THEY AREN'T ABLE TO?
For me, it's an objective moral abomination to steal from a fellow person such as myself, whether I like it or not... and I strive to live by my convictions more than anything else - therefore, even IF for example I am extremely hungry/desperate and have no other way and end up doing it, it's still wrong... and certainly doesn't imply that I WANT to be a thief (using your words)? On the contrary, every human being in a civilized, evolved, and therefore also spiritual society, will KNOW that theft is morally wrong and therefore have no desire to commit it whatsoever. Your claims then that 'everyone wants to be a thief' or 'people are only not thieves because they can't be' are therefore demonstrably false; indeed, all it shows, is that you're confused and actually need help...
Consider:
1. Do you think that theft is beneficial to society as a whole? The informed/correct answer is of course 'No'.
2. Do you want the best for society as a whole? The informed/correct answer is of course 'Yes'.
3. Therefore, if you want the best for society, you ought not to commit theft -- theft therefore becomes a crime, quite literally.
4. Therefore, anybody who partakes in, or supports/promotes theft, is wrong, and also a potential danger to the ideal well-being of society.
Basically, you should be a bit concerned about yourself if you think theft is a good thing, and even more concerned if you engage in it. You're doing the same thing that murderers do, the same thing cheating peers do... in essence, you're doing the very same thing that anybody else does to others that they wouldn't want done to themselves. Do you want people to steal from you? No. So why would you want to steal from anyone else? Everyone else is like you in that they value their own possessions, so why not do the logical caring thing and treat them as you'd expect them to treat you, or how you'd treat yourself? Surely that's ultimately the only way this world will find peace... and please don't tell me everybody wants anarchy and hell, and that we should prevent them from reaching that by making it impossible for them to obtain that? The ideal solution should not be to build a wall to prevent theft, but to get to the root cause of that theft (clearly ignorance and lack of education) and prevent it from being growing/being irrationally intended in the first place.