Are you sure it's not cultural differences in how "aggressively" people present ideas? Americans tend to be much more direct - someone who is not "pushy" may not get their ideas covered or discussed, regardless of race. Because Americans do tend to be more direct, this may come across as racial prejudice - rather than simply preferring people to strongly present and defend their ideas. I don't know if this is the case for you but it is something to consider. —
enderland 27 mins ago