Some forms of intolerance: believing in gender superiority, a caste system, exceptionalism based on ethnicity or country of origin. If you believe in those things, you might have a tolerance problem, no matter where you are from.
I try to be as tolerant as possible, and do not have negative views against immigration. But if you are intolerant I will have a hard time getting along if you openly express those views or if you apply those at work.