1. No one can prove the existence of God (whatever it means to you). Quoting some man made holy texts is not proof. Citing a near death experience is not proof. Talking about strange dreams is not proof. Feeling warm and fuzzy inside when you pray is not proof.
The fact that something like 90% of the worlds current population believe in something that (you cliam) cannot be proven begs investigation of the causes of religious belief given the sheer power of such beliefs politically and historically. You're begging the question as to why so many people believe something that (you say) cannot be proven and why its taken nearly ten thousands years of human history to come to this conclusion.
We are only talking about the last two or three hundred years where such a position was even possible- so it clearly cannot be a position based on universally or eternal true logic or reason that is beyond question or is "self-evident".
2. No one can disprove the existence of God. Your personal beliefs against God are not proof. The Big Bang is not proof. Evolution is not proof. Science is not proof. Medicine is not proof. As we evolve so does our knowledge and understanding.
1)You are assuming all evidence for the existence or non-existence of a deity is subjective or opinion and therefore that proof of either is by definition impossible. (e.g. "Science is not proof").
Whilst such a view is very popular it is build on treating religion and science are in conflict, which is NOT an empirically justified position. The "conflict thesis" focuses on Darwin and Gallelo at the expense of recognising the complex relationship between science and religion and their long historical collaboration and philosophical controversies over how evidence is interpreted.
Conflict thesis - Wikipedia
2) We cannot necessarily assume that our intellectual evolution represents a form of progress in which "higher" scientific knowledge can discount "lower" forms of argument such as religion. Many would argue that progress is a myth and a dogma with as little empirical verification as revealation given that it originates from Judeao-Christian concepts of Providence, fate and pre-destination. Wholly secular conceptions of progress of social evolution rely on a potentially reductionist conception of materialism in which consciousness is determined by environment and social evolution. This is the basis for arguing that religion is man-made and that religious consciousness is a product of the brain/mind and not a deity. These positions are extremely controversial for scientific, philosophical and political reasons.
If someone has a particular belief about God(s), whether it is theistic, atheistic or anywhere in between, why argue with them if their beliefs don't actually harm anyone else, the environment or the universe? Why feel compelled to educate, admonish, or convert them? Just leave them be.
Lets Assume that we have "evolved" a higher form of knowledge which can disqualify the previous ten thousand years of religious belief and treat nearly 90% of the current worlds population as believing something cannot be proven.
Is tolerance a sufficient justification for renouncing our intellectual and social evolution based on treating "higher" forms of knowledge as either undesirable or impossible?
I hate being a jerk too and I fully agree with the sentiments behind what you are saying but I'm not convinced thats a good enough reason to stop trying to find the truth or convince people that there is a truth greater than their own individual experiences.