You state a great number of very alarming things with all the certainty you can muster, without mentioning that neither you or anyone else actually knows if any of these will come to pass or at least to anything like the degree you mention.

In the nicest way possible, do you have anything to add other than just saying that I and the rest of the world are wrong and insinuating that I made a claim I believe to be false?

There's a lot of uncertainty in the world, but the core claims here aren't particularly hard to understand, and it's not useful to behave otherwise. The effects of the Earth warming are already visible to exactly the degree you would expect from the current level of warming, including wet bulb events, and there's no reason to believe that of all things we don't understand how heat and water work at a macroscopic level and won't see the predicted problems.