You clearly don’t understand thermodynamics, open and closed systems, or how the planet absorbs and radiates the suns energy to maintain a nearly constant equilibrium. As lurkin said, the sun controls all. The earth absorbs and radiates. By Gods grace and good fortune, that equilibrium temperature happens to be where we can survive. No amount of change in CO2 or goofy Bill Gates chalk dust balloon scheme changes the amount of solar radiation we absorb or radiate back into space.
In a more educated time, it was understood that CO2 was plant food and not to be used to scare monger. There are real pollutants, CO2 is not one of them. It appears science has been handed to idiots.
I agree with that entirely. What you need to think about is why earth was much much warmer many times in the past (e.g. with a single continent of Pangea). The reason is not because of changes in the sun (what you believe), or greenhouse gases (what they try to tell you). The sun was much weaker in the past than it is today (it varies a tiny count today causing some temperature changes) As for greenhouse gases, those are mainly an effect of warming, not a cause (they are a very minor cause).
The answer is pretty basic. The current configuration of the continents allows deepwater formation that cools the average temperature of the ocean to about 37 degrees. The cold ocean keeps the planet cold. We are in an ice age right now due to geology (ice age is any time there is substantial ice). There are other subtleties but that's the main reason.