Wow, with such a biased estimation of events, you must be talking about your own willful ignorance.

"Barry because he something about climate change once." If you willfully ignore everything that has happened, then perhaps you're not impressed or don't see drastic differences.

"How do you talk people down after spending a year telling them Hitler was coming to power?" Which is of course not in the least bit realistic.

Sure, one can create strawmen all day, and use those strawmen to push whatever argument they want, but nobody is the wiser for it. If you actually try to look at the world with as clear eyes as possible, rather than through the most rosy-colored or other filtered view, you will have a better chance of getting through days without them being hard and also of convincing people of your points of view.