Not only do I disagree with you but nearly every single civilization or populous of people from the beginning of recorded history, and perhaps even beyond, all had an inherent notion of a after life. And that is not even taking in to the account of any religious or philosophical persuasions that have come about. That in and of itself is reason to 'suspect'. As far as belief, that I leave up to the individual. If you chose to believe or not, I am ok with that, but to outright discard any reason to suspect is just foolish in my humble opinion.
Either way, you need to live (and die) with yourself so what you chose to believe is just fine with me. I can tell you this though, if I were arrogant enough to think that every civilizations of people to ever come before me were just stupid or crazy, and have the audacity to discard any and all spiritual reasoning without benefit, then I too would perhaps take your stance.
Of course you disagree with me. I merely was explaining why you were wrong using logic and reasoning. You have essentially stated that you do not believe in logic and reasoning, and instead rely on some supernatural mysticism because some other people also in past history also relied on supernatural mysticism.
In any case, no evidence of afterlife.
I'm not saying afterlife is "impossible", as I can not prove that. I't just seems quite infeasible and with no evidence or basis, astronomically improbable.
The only way to believe in an afterlife is "religiously" since there is absolutely no secular basis or reason to believe.
The same is true with god(s). There may or may not be gods, but, until you are able to measure a god, or measure an impact of a god, and have some way to interpret a god, logically, the correct assertion to make given the vast information available is that gods do not likely exist or do not get involved in our universe.
Anyhow, Looking at it logically. You die and your dead. The end.
Any other way of looking at it is essentially faith based and no longer logical.
You can believe what you want to believe, but, when your beliefs are not logical, it is dishonest to claim that they are. When there is evidence that contradicts your beliefs, you are still free to believe whatever you want to believe, but, that does not make your opinion or belief valid.
People used to think the Earth was flat, or that the earth was the center of the solar system, or that the stars were just little lights and not other "suns." People used to think that the world was only a few thousand years old because they could not measure it's age. People used to think that species were "created" even though they obviously have evolved. People used to think that black cats were bad luck or that certain numbers or symbols were "lucky."
People have believed in horseshit for thousands of years.
There are many many obsolete beliefs spanning the centuries past. It is not arrogance to learn and accept new information/science. It is arrogance to discount facts and reality in favor of fantasy.