Of course I am. But there is still some truth in there. Some CBP officers are friendly... many are not.
Upon entering the U.S. you effectively have no rights whatsoever. Whether or not you're allowed to enter the country is entirely at the discretion of the CBP officer you happen to get, and you have no right to appeal their decision. Run into one who's having a bad day and doesn't like the look of you and you're screwed.
Not surprising. They employ people with below average intelligence who are convinced that the U.S. is such a brilliant country and every single person they come into contact with is from such a terrible shithole that the only reason they could possibly be "visiting" the U.S. is because they plan to illegally overstay so that they may enjoy a much better life in the greatest country on Earth.