Every thing, we see, perceive, or measure, is either matter or energy and that's all, i.e. there is nothing which is supernatural, this is the only world, there is no hereafter and there is no God. (An atheist's point of view)
That's not necessarily an atheist's point of view. It is, however, a common and contemptible rhetorical trick of the god botherers who show up here to scorn the atheists. You are employing two fallacies. The most immediate and obvious one is a compositional fallacy which asserts that all atheists are identical in their thinking--it would run something like this: Every atheist i've ever discussed this subject with
[which i suspect is precious few] says that there is no supernatural, this is the only world, there is no herafter and there is no god
. Therefore, you conclude that this is the point of view of all atheists.
The second fallacy is inseparable from the first--you are employing a straw man. You describe an atheist's piont of view which you are prepared to argue against, rather than an actual point of view provided by an atheist here.
So let me provide you one. I don't know if there is a god, but i don't believe there is because i have never seen any evidence that this is so. I don't know if anything supernatural exists, but i don't believe anything supernatural exists because i have never seen any evidence that there is. There is far too little data to know if "there is only this world," leaving aside the entirely unsatisfactory use of the word "world," the meaning of which is too plastic to be useful in such a discussion. As for a "hereafter," once again, there is just far too little data to know--in the specific case of "the hereafter," there is no data at all. But i don't care if there is a god, or anything supernatural or a hereafter. If, upon my death, i learn that there is a hereafter, and that it is the realm of a god who is intent upon punishing me for not having sung his/her/its praises all my life, i don't want to associate with the petty-minded, childish son-of-a-bitch. I'll take my chances.
I said that i suspect that you discussed this with precious few atheists because in my experience, atheists don't have any interest in arguing with theists in real life. If you tell that you have in fact discussed this with many atheists, leaving aside the vagueness of "many," i'd consider you a liar, and point out that even if you have spoken to many atheists, you'd had to have spoken to millions upon millions of atheists to even make the feeble claim that what you write represents a majority point of view.