Answer: The sentence should be revised in order to make it more formal.
The sentence is written in a way that copies colloquial speech. However, it is not appropriate for a written analysis.
For example, the word "totally," although appropriate in some circumstances, is ambiguous and overly familiar in this case. Moreover, contractions should not be used in formal writing. Finally, some of the words used in the sentence are not very clear, such as "things." A revised sentence would look something like this:
"Nazario feels that refugee children should not be sent back to the same dangerous circumstances they have left."