Like many of you I bought my 3 for the greater performance, reliability, lower long term operating costs, home fueling convenience (aided by my solar panels) and yes, for the potential of a smaller environmental impact.
With a plethora of EV's coming out for sale over the next couple of years I am convinced that more ICE owners will buy these cars for many of the same reasons that I bought mine. If along the way it turns out that EV owners end up having less negative net impact on the environment, so be it.
As to the climate change and environment controversy, well I believe that no one is likely to change the position of another person simply by preaching their gospel at them or by beating the other person over the head with their opinion.
Regardless of one's position on this controversy everyone should be encouraged to examine how climate change (no matter what the cause, manmade or otherwise) will be impacting our lives.
As others have said, education is the key and any reading on the subject, even fiction (some would claim climate change is fiction), can lower the temperature and make discussion easier. There are many articles and books on the environmental impacts of climate change, both science and science fiction based, so read. If fiction is your escape then may I suggest "Seeds of Our Future" on Amazon.
Hopefully through education and meaningful discussion we can all at least address the effects of climate change on our lives if not agree on the causes or solutions.
Happy motoring - electric motoring that is, go Tesla!