The only high profile examples of scientists who I know accurately communicate the "true" consensus are Michael Mann and James Hansen, with Jason Box chipping in on Greenland. Even then, only Hansen has proper emotional sense of urgency in his communication, although this often gets entirely lost when talking in specifics (which he acknowledges).
As I am apt to comment, the consensus is that 4-5C of warming is enough to threaten civilization itself, and the supposedly radical Paris targets are actually for 6C long term. Therefore our "goal" is civilization collapse!
That said, I feel you are being way too hard on these scientists. I completely understand why, as I went through the same phase of grief myself. It drove me to spend many years study propaganda and the nature of mass social movements, with the purpose of somehow teaching scientists how their actions are contributing to the problem.
Instead I came to discover the root of the problem lay in lack of solid leadership and compassion for how society operates. Those of us who genuinely see reality spend our time trying to communicate and get people to understand, because this is what personally moves us. However, it is not the principal driver for the vast majority of people, and in fact information overload causes them to dig in their heels.
By contrast, propagandists are skilled in leading the masses by tailoring communication in ways that are most effective for mass influence.
The fact is that data and models have almost no real contribution to denier propaganda. They literally make up shit even about the most straightforward and clear science, and if it is too hard to spin then it is just ignored. It seems to us that every single statement and paper must be perfect so that we cannot be taken advantage of (e.g. ClimateGates) but this is a trap: the obsession with accuracy and consistency only brings us further down the rabbit hole of disconnection. At its worst, it leads to internal conflict and ad hominems that break down cooperation.
I would strongly recommend you read "Don't Even Think About It" by George Marshall, who does an excellent job of showing how we all contribute to paralysis on social change, and how the propagandists (of which he interviews one) are only a very small part of the puzzle.