I agree with you on something. Elections have consequences. The context of that is that people shouldn't be surprised about the direction that is taken after the election. I'm not surprised that Trump will back out of the Paris Agreement. However, it doesn't mean that those who disagree shouldn't vocally dissent; that's a foundational principle of our democracy. One shouldn't use that quote to suggest that people stop discussing or disagreeing with the direction. It is fair to say that they shouldn't be surprised, unless they really weren't paying attention. In which case, that's at their peril.
Regarding the "fairness" of the deal, I'd love to hear about a deal that you deem fair which is also agreeable and ratifiable by the same set of nations. What terms would be agreed upon by that subset and would work towards limiting carbon emissions? These deals aren't tit-for-tat, and I have to assume you know that. Wanting everything to be "fair" is what my kids do. That's what I call an argument poisoned by "flawed emotions."
Given that you defend bailing on the deal because of the inequity built into it, does that mean you assume Trump will renegotiate another deal that will be more "fair" and still reduce emissions on the same trajectory?
My assessment of his administration's actions to date is that they do not like to include environmental externalities into their economic analyses. Those costs become the burden of society at a later date, and it's for the purported benefit of an immediate economic gain. I believe that if one does not account for externalities, they are myopic either purposefully or due to an inability to digest the entire economic life cycle of decisions.