nihilism?

When I think about universe I think like thet  as follows below.

No matter how you think about the problem of this society, for example war, poverty, inequality, universe will be end and humankind also will go to end.

no matter how we think about contemporary problem the descendants of us have the ability how to think and change.

i think the life of humankind is like a dream.

because if I stand on the point of view that the history of humankind is like a flash, whatever we think about today's world we will go to end and universe also will go to disappear.

and it just like a dream of flash.

if I stand this point of view the conflict between country or community or humankind have no value.

after the vanishing of humankind and universe, there are the possibility that some life would be born.and they will make some community as they don't know that before them some civilization had been in past.