Before you were born, you had no consequence on the billions of people alive throughout time. You did not exist. You felt no pain nor happiness, no loneliness, no bliss. Why should anyone think death is any different?
Even now, your reach of influence on the billions of people on Earth is pretty minuscule, save your immediate family and acquaintances.
Your sons and daughters will remember you and maybe their children will too, but each progressive generation will find your existence less and less meaningful......yes, without you in the chain, they may not have been born, but eventually, you'll just be a name on a branch of a family tree.
All the people in, say, the Congo or in India or Ireland right now are getting along with their lives and are completely oblivious to your life and will be as equally oblivious of your existence when you're dead.
Thousands of years of humans living and dying before you were even conceived just a few decades ago. And in a few more decades from now you will die.
Death is the same as un-birth.....you just don't exist.
Find happiness now and don't get stuck in the meaningless bullshit out there. Life is definitely too short.