The inherent meaninglessness of life doesn't bother me as much as it does others, I believe that individuals have the power to give their own lives the meaning they desire. It's clear to those who do not suffer from societal brain fog that we are the product of an unfortunate chain of events that led to the emergence and evolution of life on this planet, resulting in the existence of humanity.
In a way, I see our existence as akin to playing Minecraft, where we are dropped into a world without any specific instructions on what to do. It is up to us to determine our goals and strive to achieve something during our limited time here. However, eventually, we will all meet the same fate, and even those cruel individuals who bring children into this world will see them grow, experience their own share of suffering, and eventually pass away like everyone else.
In the grand scheme of things, the efforts we put into our pursuits today will hold no significance in the distant future. Those who inhabit the world 1,000 years from now will have no knowledge of our existence (excluding brilliant minds). All our accomplishments, words, thoughts, creations, and endeavors will fade into oblivion. Future generations will undergo the same cycle of meaninglessness, repeating the pattern of life and death. As you mentioned, and I may add, akin to little hamsters mindlessly running in circles.