Racism can be subtler than that. For anyone who has experienced racism it's more a feeling than anything specific.There is no other explanation.
More often it's direct:  how did "you" get that job?
Stereotyping is much more common.
That is heard all the time, from people who would never admit it's racism.
Chinese Canadians are tolerated if they stay in China town, run the drycleaners and the Chinese restaurants but don't try to become part of society in a meaningful way, especially first generation immigrants.