Well I have some anecdata for you. I personally know three people who have cancelled subsequent trips to the USA after their treatment on entry, and I personally will not be coming back after the way I was treated. I've travelled on business to over 30 countries, and thus is the first time I've decided that a particular one is just not worth the hassle.

So you keep believing everything is ok, I'm sure it makes you feel better, rather than actually listening to other people's stories.