You can't judge a whole country by having a bad experience.
Even though I had a very bad experience and I experienced racism first hand by the INS officer at Atlanta airport, yet I still have very good memories...with American people, people who don't have any prior made judgements against Arabs or Muslims.
The ordinary American people are very nice and funny.
I still remember some of the families I used to know.
I even got to say the prayer once at a Thanks Giving Dinner...That was a very sweet gesture from the family that invited me, they wanted to send me a message "It doesn't matter who you pray to as long as you ask for peace, love and compassion"