In the third and last part he urges us to get out and enjoy the sunshine, to connect with long lost loved ones (as though we had such a one), and again he harps on his argument that we can't change people. The argument can be summed up in the final sentence:
Lightfoot wrote:
If God is a fantasy, why bother waisting most of your time arguing about something you don't believe in, that doesn't exist and has no good arguments?
As stated above in Post 93, it's what belief in mythical characters makes him and fellow believers do that we object to.
If I didn't get a lot out of it for myself on a personal level I would not be doing it. I love intellectual debate for its own sake--the verbal sparring, the strategizing to see what strategy will get what response, the experimentation to see how to get the answer I need to a certain life-long question, etc. Constructing theories to explain life, demolishing them to set up better ones, then finding a totally new approach in another area--this is what makes life worth living.
Lightfoot can't even spell (I got tired of correcting the self-righteous hypocrite's mistakes after the first post); I don't think he's got the faintest inkling of the pure bliss derived from such intellectual pursuits and gymnastics. To make up for his ignorance he (or some other Christian) sarcastically refers to our claims of loving debate as though it were a false or ridiculous claim. I think that says more about the speaker than the target.
Nothing else than the bliss of intellectual pursuits and learning accounts for the advancement evident in scholarship across the centuries since the invention of the printing press. Religionists tend to put it down to egotism. However, any honest researcher knows that there were easier ways to fame during the Inquisition than to announce that the earth was not the centre of the universe.
To break through the extreme scientific ignorance and religious superstition of late Medieval Europe required more than egotism. Egotism could not have progressed
despite the Inquisition--would not have overcome death itself and pressed forward despite torture and live stake-burnings--to build the intellectual edifices we inherit today.
A true thirst for knowledge, however, could--and did. The bliss of achieving new understanding was powerful enough to drive isolated scholars working long and lonely hours with primitive technology and candle light. Isolation, opposition, blindness, illness, and house arrest did not stop Galileo from writing in his old age and smuggling his work out of the country from under the noses of his captors to get it published. Others paid with their lives. Find links for more information in
Enlightenment Scientists Crash Ptolemaic Cosmology.
I can't think of any other arguments the Christians make that I haven't answered. They tend to go in circles and poke ridicule when they run out of arguments. Any monkey can do that--myself included, but that is not an argument.