"Why is that every time
a wannabbee says something that doesn't promote Cruz's agenda, we get
sophomoric insults on the person's integrity etc, instead of a substantive discussion of the issue?"
You're talking about Trump right?
I think it's pretty specific that I was talking about criticisms of Cruz's agenda. It's impossible to have such a thread without the messenger being insulted, ridiculed, and marginalized by Cruzers, and any person trying to discuss anything being insulted.
Why not just discuss the issues?