What about the research indicating improved cognitive capabilities in adults who became multilingual as children? Isn't it just as likely that children who grow up exposed to multiple cultures end up better able to maneuver through a complicated, multi-cultural world?
Hearing nothing but "crisply perfect English" as children robs them of this gift, and normalizes exclusion to them — at the level of awareness that all of the lessons we learn at that tender age: too deeply even to notice, let alone change, without considerable effort, or some specific motivating factor or event (which, having internalized exclusion, is structurally less likely to happen, in the first place).
Hearing nothing but "crisply perfect English" as children robs them of this gift, and normalizes exclusion to them — at the level of awareness that all of the lessons we learn at that tender age: too deeply even to notice, let alone change, without considerable effort, or some specific motivating factor or event (which, having internalized exclusion, is structurally less likely to happen, in the first place).
To me, that's improper child care.