In my view I put the maths in the same category as you put the rest: it's subjective at best.
The mathematics is based on assumptions which are subjective. Sure, the maths doesn't lie but is only as good as the assumptions and the mathematicians. The conclusions are also based on a poor understanding of science which has already been done to death on this forum, so I'll refrain from repeating the points. The information that covers the points in easily available.
Have fun with your investigations; that is if you want to investigate the claims made.
One point that struck me is: "The World as we know it has no waste, there is nothing left over, Theres Dirt, Air, water etc and metals and gasses etc." Examples of waste:
How much of the sun's output is radiated into space without being used?
Why have well over 90% of species gone extinct?
Why do so many die young often of inherited diseases?
