"I find it difficult to criticize what she did or didn't do when I am doing nothing other than sending money to charities."

You make some good points about my example of Mother Theresa. Especially the above quote.
However, my point remains: it was an example of how delusion can cause people to make decisions that are "bad". Had she not had a crazy notion that suffering would bring people closer to Jesus, they would not have had to suffer.
Any number of people have done, and are doing, similar self sacrifices to help others, but they are not raised on a pedestal like she was/is, that is the work of the Catholic Church and some enthusiastic believers.

"It appears that Cho's family was seeking help anywhere and everywhere they thought it might be found."

Yes, they did. But again, it was an example of how false beliefs can trick people into making bad decisions. Had she not wasted time on trying to deliver her son from "demonic powers", it's possible that the massacre could have been avoided. I don't doubt her motives, just her beliefs that made her make such a decision.

"As to the question of abstinence in the church"

Actually, I wasn't referring to the absurd overrepresentation of child molesters within religious establishments (I don't think good intentions are involved there). I could have been a bit more specific: I intended to refer to how abstinence is taught to young people growing up.

"Macrocosmically religion has become destructive."

Yes, I agree.

"On an individual level people make their own decisions."

Yes, that is a large part of my point. It's why I think that any ideology that keeps people from basing their decisions on something other than reality, is potentially dangerous.

"Misguided kindness seems preferable to no kindness at all."

Perhaps in the particular case of Mother Theresa.
But you can take any number of exorcisms or "conversion therapies" of homosexuals as other not so preferable examples. Then there are people who probably think they are doing good by trying to remove evolution from education and insert creationism instead. What a horrible setback for humanity that would be. It's almost as bad as saying that medical personal should stop using their education and instead sacrifice birds and splatter blood on the sick to "cleanse" them.

I do not deny that religion has positive effects as well. And for some, it may even be a necessity to keep them coherent and functional. But I don't like that people on a large scale overlook the negative effects, believers and non-belivers alike. If a person like Ted Cruz wins the election in the US, I'm sure he would think that he is doing something good in going to war on religious motives.

I think that even if religion has played an important role, it is high time for humanity to grow up and get rid of their imaginary friend. We need to start living in reality.