I apologize, but I will not reply to the comments one by one. You have written too many and I cannot go into all of them in detail. I'll try to explain what I'm doing. I thank Cheetah for clarifying a few things about my comments that I no longer need to clarify.
I'm not defending the position of the solipsist, which is not mine.
I'm trying to expose the solipsist position as correctly as I can. I cannot take it to its ultimate consequences because I do not know of any modern philosopher who is a solipsist, but I try to present what is commonly understood as solipsism as a logical problem and its implications.
Actually you have been defending the position of “the solipsist” (whether you yourself believe the solipsist claims to be true or not). And I think everyone here can see that very clearly.
However, leaving that aside - if you do not actually think the solipsist idea is correct, then presumably that can only logically mean that you think there are better and more persuasive reasons to believe that the world around us is real. But that is exactly the position your opponents take as well – we are not claiming a proof that solipsist unreality is impossible … we are just saying that the evidence is better explained by a world of reality & not a world of solipsism.
I have also analysed the criticisms of solipsism that have been made here. They don't seem right to me. All of them start from the belief that impressions are impressions of real facts, which is precisely what the solipsist questions.
Your next point is really your first substantive point, where you say
“ … the criticisms of solipsism ...all of them start from the belief that impressions are impressions of real facts,...”. Quite right, the criticisms do start from a belief that your sensory system is detecting real objects and real events, and sending electrochemical information about that to the brain. That has to be the starting point for all of us, inc. any philosophers who propose solipsism.
It has to be your own starting point too. That's true because from a time even before the first philosopher ever thought of any such idea as solipsism, he himself, everyone around him, everyone before him, and even all animals and plants that ever lived, all had that sensory detection of reality before anyone later claimed that it might all be an unreal illusion … the first impression is always of reality.
That means there is a burden of proof upon any philosopher who later comes along and claims the world is not actually real. They have to show how anyones thoughts can occur without the reality of a brain & a sensory system (or any other equivalent detection system).
The only exception to that is if you say no philosophers ever existed, in fact nothing has ever existed, except for your own disembodied mind (i.e. David Mo's own mind, since you would be the one making this argument), so that you claim only your own thoughts actually exist and everything else is an illusion. But if you make that claim, then you still must explain how you are able to have any such thoughts at all without a brain?
Why do you have to answer that question? Well the reason is that you yourself are demanding it! How are you demanding it? Well, if all that exists is your own thoughts, then all the posts here are just thoughts occurring in your mind, but those thoughts (your own thoughts) are insisting here that you
do need to provide an explanation! IOW – in that scenario where only your own thoughts exist, it is your own thoughts themselves that are constantly claiming that you must explain your own claims – how do your thoughts occur without any real mechanism such as a brain and sensory system?
OK, since you think my replies have been too long with too many different points (and I agree they often are too long), I will end this reply at that stage before making any comment on the remaining parts of your post.