If you are white you do not face racism. Just because you met a person who treated you rudely it does not mean you suffered from racism. You have every right to call that person out for being rude, an asshole or even racially prejudiced but they were not racist. Until there is a day when white people are made into slaves or regarded as "less" solely for the color of their skin, white people haven't dealt with racism. Until the day we live in a world where the media implies that someone who is white is less educated, less beautiful, less successful, less deserving of higher pay or just less you have not experienced racism.