I do take offense when people insult my God because of the actions of other believers. I don’t need to defend Him, but I just want to say two things:
1. If people sin (and we all do) it’s all the more reason we need God.
2. Not everyone who claims to be a believer is a follower.
The fact that you have genuinely impacted this many lives with your caring words and sometimes straight to the point words proves that you were more than just a teacher, but a father figure to many and one of good ones out here in this world. You will be missed.