When you believe it's reasonable to have a discussion on whether your children can be friends with people from a different racial group, and then you find a way to tie this into Trump and his supporters being "racist"
To answer your question, yes. Your children can be friends with white people because white people aren't a collective that likes to consciously or unconsciously oppress minorities at every turn they get in order to "maintain their hold on society." Also, stop blaming Trump and his supporters for every single damn problem; you are giving the man too much credit.
[spoiler]Was going to post the article in the body, but I ran out of space.[/spoiler]
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So....because the writer perceives a racial divide, he is now going to create an actual divide by teaching his kids to not trust "those people?" Way to heal those wounds!! That's like telling a person with a paper cut on their finger that they will have to have the whole arm amputated!!