I didn't stop being generous when I stopped believing in Santa
It means that I value human compassion. There will be no redemption in the distant future. Each and every person needs to be responsible for improving our collective well-being. People are abused and murdered every day and we have to work to improve this situation. Those who survive the abuses heaped on them do not generally end up being better or stronger people for it, far too often they end up continuing the cycle of abuse and they need our help and compassion; first and foremost in prevention.
It means that I cannot rely on the non-existent supernatural to make everything right at some nebulous point in the future. Therefore I must take my share of responsibility for how things are now and how things will be in the future.
Where do morals come from if not from god? They come from human behavior processed by human thought. This answer should be obvious. But without god there can be no absolute right or wrong? Wrong, there is no absolute right or wrong with god. The god of the bible tried to get people to murder their own children. The god of the bible ordered the slaughter of every man, woman, and child at Jericho (Josuha 6). The god of the bible directly Murdered all the first-born of Egypt, including innocent infants. The god of the bible Murdered every man, woman, and innocent child on the planet (except Noah's family) as part of the flood. Doesn't any of that seem wrong to you? If so, why is your innate sense of right & wrong better than gods supposedly is?
There are better ways to deal with our problems.
If the Christian god existed, he has allowed billions of children to be subjected to abusive parents (emotionally and physically) and then proposes to punish those children with eternal torment once they grow up to be less than ideal human beings? Doesn't that just seem wrong to you?
Consider the alternative, that we are animals who are slowly gaining greater cognitive abilities and we're now able to look back at our history and see the evils which we have propagated on our own. We are now capable of doing better but you have to take steps to be responsible for yourself and not scapegoat your own failings onto some mythical Christ.
And we are collectively guilty today for not immediately putting a stop to many of the evils that continue. Some will take longer but there are many things that we could end today if we all say, we're just not going to take it any more (cue rock music).
For example, it is not acceptable to stone people to death. It is not acceptable to put anyone to death, however horrible of a person they have been they are a product of our own collective failure to take action. I do not propose they be allowed to roam around free, but it is just not right to kill another human being unless it is absolutely necessary to prevent them from causing immediate harm.
500 million people live in abject poverty, without access to acceptably clean water, food, and shelter. and some 3 billion people live in unacceptable conditions that no human should have to endure.
15 million children die every year of starvation but for the cost of only ten Stealth bombers, every single child that starved to death over the past 10 years could have been saved. But these children will continue to suffer and die, every year, day in and day out, until we all stand up and say 'no more'.
Another major issue we face today is that the population growth rate is alarming (despite these problems which cause unacceptable levels of suffering and death). As we begin to fix the deplorable conditions our brothers and sisters are forced to live under we must gain control over our own reproduction rates. We have to be responsible and educate people so they can make better choices for themselves and others. And under these circumstances it is morally detestable to continue to preach this nonsense that god gets irate if you use a condom (or other forms of birth control).
I would love to see a world where abortions are not necessary but human-kind has not reached that level. If you are "pro-life" and want to end abortions then you need to go about it the right way.
First and foremost, by ensuring those who are alive and suffering have proper food and health care. If you cannot do that then you are not pro-life, you are just pro-suffering.
Secondly, you need to ensure that every child has a safe and happy home to grow up in with loving parents. And you need to accomplish this with compassion, not by forcibly removing children from their parents and shoving them into foster homes where they are abused further. If you want to "fix" a broken family move in with them and show them a better way. If that is too much of your time to bother with then you are part of the problem. Our current system of child protective services in the US is utterly broken and it wreaks havoc on everyone it touches. It is not based on compassion for the child although it pretends to be so. And through the rest of the world... well, we have a lot of work ahead of us.
It is irresponsible to assume there is supernatural safety net that awaits us. This is nothing more than a boorish excuse for inaction. So please, wake up and take some action to make the world a better place.