I think he means "help" as in he wouldnt have to worry about them 24/7 if he knew they could defend themselves from a Hollow attack. Think about it, he lost his mother the same way and as far as he knows, they are just as helpless as she was. I'm recalling something... Didnt Karin confront Ichigo? Telling him that she's "seen" him? Or was that just Tatsuki (wont ever forget that! POW! Seriously, who punches their friends head throw a window?!)? For some reason I'm recalling Karin saying something to him also.