You describe the human condition.
Doesn't matter WHO or WHAT you are, or WHERE you come from........you're first and foremost intitial thoughts are going to be of the entire social structure or group of peoples that are stereotypical of that region, place, country, city, or state.
It's one of the brainwashing integrations of human society. And depending on ones particular brainwashing techniques that were used on them...........they can be silent, verbal, or deadly..........without investigation or research for truth, lies, or knowledge.