"I see that no matter how much I'm going to explain, you are going to be inclined to disagree since you all live in your own subjective reality tunnels"
That's because it's just philosophical. It only exists in your own way of looking at things. There is no objective proof to what you are saying.
One doesn't need objective proof for one's own existence, that is just your way of looking at things. From a material perspective. All it is, is an opinion.