And if some kind soul could show me where and where not to put the commas in the above paragraph I will be forever grateful, because to be honest it has driven me completely 'round the bend!
You might try to edit it in a way similar to the way I imagine Cormac McCarthy (a recognized modern prose stylist) might have approached editing it:
Well as Bill says somewhere else the problem of whether God* does or does not exist can never be solved. As to the matter of us ruining the place it has always puzzled me why lesser animals seem to live in harmony with their environment while us humanoids with our far superior intelligence seem hell bent on polluting and in the fullness of time destroying it.
If you just can't bear to let fly a paragraph without commas you might try putting ONE here:
Well as Bill says somewhere else the problem of whether God does or does not exist can never be solved. As to the matter of us ruining the place, it has always puzzled me why lesser animals seem to live in harmony with their environment while us humanoids with our far superior intelligence seem hell bent on polluting and in the fullness of time destroying it.
If one comma is not enough to satiate your sensibility try TWO as here:
Well as Bill says somewhere else, the problem of whether God does or does not exist can never be solved. As to the matter of us ruining the place, it has always puzzled me why lesser animals seem to live in harmony with their environment while us humanoids with our far superior intelligence seem hell bent on polluting and in the fullness of time destroying it.
You might also make the whole of it more compact and concise such as with this:
As Bill says [(in or at) precise location] the problem of whether God does or does not exist can never be solved. It has always puzzled me why animals appear to live in harmony with their environment while we humans with our far superior intelligence seem to be hell bent on polluting and ultimately destroying it.
A matter of opinion, of course.
*As far as capitalizing the word God: if you do not you are applying editorial discretion as to what kind of god you claim Bill said can be proven to exist. If you do capitalize it you are also editorializing. Either way you go you are editorializing. But what did Bill actually say?
Which way to go is the broader of the two ways to go? I imagine the broader way to go would be to capitalize it. That way one can prove or disprove God as well as call into question whether there are any gods or god but if there were only one god it would likely merit capitalization.
For example:
https://www.fastcompany.com/3064681/most-important-economic-theory-in-technology-brian-arthur