It's your own fault if you are dumb and naive
It's not like anybody would be giving away websites which make good money for 5000$ or that you don't have to do anything after you bought an existing website (which would cost you a "bit" more than 5000$ and maybe you see one person per year who do this for personal reasons,but generally common sense should tell you that nobody is normally giving away real money makers).
What he says was right if you market the site right,you couldn't market that site so you didn't make any money.The site looks like crap but there are even people who make money with crap sites.
It's your own fault if you don't have a clue about the business and buy stuff that isn't worth the money,so don't bitch around and deal with it!