An attack on secularism?

[Beskar]

A Socialist would never ban sodomy though. Even then Socialism is a economic argument, it isn't one based on fairy tales and imaginary friends.

As for:

Why do people have to single out beliefs in God and ban them from the political sphere?

Because we are still not a fully Secularised nation. The focus on Christianity is only because the Buddist Privileges isn't there, same for Islam. If we had Shia law or people trying to advocate that, I will tell them where to stick it. Religion has a lot of institutionalised privileges, such as tax immunity being one of the biggest. This lead to people like Hubbard doing 'scienfictionology' just so he can cash in on this tax-free status.

Also, I remember the athiest bus campaign, when all the religious peoples were trying to silence athiests/agnostics again, trying to file discrimination lawsuits simply because they said "There may not be a God" on a banner on the side of the bus.

secularism has been turned into something more than that, and has became an ideology in its own right, eg secular humanism

Nope, you are clearly not knowing what you are talking about. Secular Humanism is from the Humanist movement, which has Christian, Muslim and other branches as well. Secular Humanism is simply the non-religious version based on the values of Humanism.

For example: http://en.wikipedia.org/wiki/Christian_humanism

And here is information on the Humanist movement:
http://en.wikipedia.org/wiki/Humanism

Spoiler Alert, click show to read: 

Humanism is an approach in study, philosophy, or practice that focuses on human values and concerns. The term has a complex history and is used to mean several things, most notably, (1) an educational movement, associated especially with the Italian Renaissance, that emphasized the study of Greek and Roman literature, rhetoric, and moral philosophy – the humanities – in the formation of character. Historically, this revival of Greek and Roman learning was seen as complementing rather than conflicting with religion. Today, the terms humanist, humanism, and humanistic in this historical sense have broadened in meaning to encompass all literary culture (not just Greek and Roman), and indeed, cultural activity in general.[1] And (2) a secular ideology that espouses benevolence through the use of reason, ethics, and justice, whilst specifically rejecting supernatural and religious dogma as a basis of morality and decision-making. This latter use characterizes modern organized Secular Humanism as a specific humanistic life stance.[2] Thus, in modern times Humanism has come to connote a rejection of appeals to the supernatural or to some higher authority.[3][4] This development of Humanism arose from a trajectory extending from the deism and anti-clericalism of the Enlightenment to the various secular movements of the nineteenth century (such as positivism) and the overarching expansion of the scientific project. However, in traditional religious circles, humanism is still not seen as conflicting with religious dogma.