First of all welcome to HV.
I think he is dangerous, mainly for his comments on Trident in that he would never use it. I share the view that we need Trident, this is our deterrent more so now than ever before.
I have other views on JC, he is waaaaaay to left wing for me too. I love the way the lefties state we are bombing Syria, instead of saying we are precision targeting ISIS within Syria. I think JC seems to think he can sit down and have a chat over a cup of tea with these extremists, bloke is in noddy land and therefore dangerous.