Two points:
1. I never stated that my own viewpoint is representative of the majority. In fact it usually isn’t. What I wrote was that the person I was responding to, HIS viewpoint was not representative of the majority- not that Trump would win the election, but specifically that Trump’s popularity would increase as a result of the impeachment and that the Democrats would be crushed because of it, a prediction he has made several times now.
2. As far as the betting markets go, they do not accurately represent Trump’s chances of re-election against a single candidate- they are rating his chances against the entire field. I believe that so long as the single candidate is not Sanders or Warren, the Democrat will be favored by the betting markets. But we won’t know this until a single candidate has been chosen, so let’s see if I am right about this.