There is a lot of information on that website now, which I think will be of interest to anyone following an Evolutionary Philosophy blog. Have a look around. I'm not always convinced "Humanism" is the best name for it, or that everyone involved is on board with where I think it is headed, but if you are looking for a worldwide movement of non-believers to come together into a strong coalition that can act to improve life on Earth (and beyond), then I think Humanist organizations are probably best positioned to become a home for that. They have a long history, they are active at the local, national, and international levels, and they have a strong resource base in terms of people and funding. They're also open to changing and adapting their beliefs in response to rational arguments, so if there's something you don't like about Humanism, you can get in there and change it!
As evidence, the North East Humanists just changed our own official statement of our beliefs and values. And I have to say, I'm quite proud at how they've come out. The six main statements, followed up by their brief explanations, mirror my own ideas about what comprises a worldview and what evolution can teach Humanism. See what you think of these and let me know in the comments below if they would be something you could sign up to.

Humanists have no official dogma, sacred texts, or infallible leaders, and we aren’t required to believe the same things. However, Humanists generally share some very basic but important commitments. In 2021, the trustees of North East Humanists developed the following list of beliefs and values that currently represent what we are committed to.
1. We only live once so we want to make the best of our lives. As far as we can tell, our life here is the only one we will ever have. We are part of an evolutionary process on Earth where all life is related and shares the same genetic building blocks. We see no evidence that anything supernatural affects our existence. It is up to us to give our lives purpose and to make them the best that we can for ourselves and others.
2. Our behaviour is guided by reason and empathy with concern for the welfare of all people and the entire planet. Morality is the product of our experience as evolved social animals. It is developed using natural capacities such as reason and empathy. Humanists believe that the underlying principle governing morality is a desire for the flourishing of all life.
3. Our knowledge of the world comes from experience and is aided by the sciences and humanities. Humanists ask questions and seek evidence to support their beliefs about the world. Our theories become robust in this way but must change when new information and better arguments become available.
4. We support democratic participation, secularism, and human rights. Humanists are committed to a pluralist, secular society. Whilst generally respecting the right of people to have different beliefs, Humanists will challenge ideas and practices which threaten harm to others or undermine their human rights.
5. Conflicts of interest require negotiated resolution and cooperation. Disputes at all levels, from the personal to the international, should be resolved through reasoned argument and negotiation, rather than through the use of power. We cooperate with others to address problems and reduce pain and suffering in the world.
6. Creativity and physical expression are key parts of our humanity. Humanists recognise that art, sports, practical skills, socialising, and mutual support meet innate needs in human beings. These things make our lives enjoyable and worth living. We believe that everyone deserves to have opportunities to express and experience their unique array of interests and capabilities.
www.northeast-humanists.org.uk