Rich, the residential schools had neither gas chambers nor ovens.  There was no stated aim to completely stamp out all traces of a race through murder.  Medical experiments resulting in permanent disfigurement and death were absent.  Systematic starvation and 16 hour slave labour days were not features of the residential schools.

There is absolutely no comparison between the two, and anyone who debates the point is perpetrating a great insult to the Jews, Slavs, Roma, political prisoners, and homosexuals who perished.