Life would be better if human beings collectively worked to make life better for the previous, current, and next generation of human beings. By creating policies that positively impact the society, quality of life could be much better. Life would gain more meaning if the standard of living would increase, work wasn’t an ever free time-consuming thing, the ailments of the mind were handled much better. We need to fix the crisis that homelessness, hunger, limited or no access to healthcare can cause within a society. If people had the chance to live without worries about the immediate future, perhaps depression would not be such an issue. Right now, it feels like a select many who got theirs are desperate to make sure not many people get the same opportunities. Some want to actively dismantle democracy and destroy the very few social safety nets the USA has, I see this as another source of misery (at least in the USA in particular).
I don’t know what you’ve been reading, but the last time I checked: Science hasn’t proven that there is no god or afterlife; this is still an open question at the moment. It’s a matter of faith, as science is chasing far more important answers. I personally neither disbelief nor believe in a God; there’s no direct proof save what people have written about said being. If anything, a serious lack of direct communication with all living beings on Earth seems to be an indication of an absence of a Creator Being. Also, given the contradictory nature of the bible; it feels like the pure work of man, with no higher power involved. Those who were desperate to control people through faith; latching on to the chance to control a faith-based narrative, since polytheism was on its way out.