At the very least it should be classed as a mental illness and treated as such. Nobody chooses who or what they're attracted to, and those suffering deserve help, especially when they've not acted on it (the guy in the post also deserves help but also needs punishment for his actions on top of it)

Yes. Every human has an "id" or animalistic desire. Part of living in a society is giving up part of those desires so we can all thrive. People can change, it's part of what make us human.