Haven't you heard of 'Humanism'? It has all the hallmarks of religion and has a God - Us.
While I don't doubt there are various individuals who might describe themselves as a God, this is not the hallmark of humanism. Humanism makes human beings a priority, that is not the same as being a God, if we take the classical definition of God. Of course, that very lack of a definition even on the religious side makes this difficult to discuss as a comparison..
However, will ask you - where do you get your definition of humanism from? Have you read the books that define what humanism is? Rogers? Maslow? May? Fromm? Jung?
If not, would encourage you. Not one of those books define us anything close to being a God. In fact, they do the opposite, defining us as flawed due to the unique factors that make up our up-bringing. Part of the process then in becoming more 'human' is overcoming those flaws through self-awareness, selflessness and other things. It also denies worship of other human beings and the self, in favour of loving the self and others..
There may be aspects of humanism that are religious-like, but being like a God? Not even close..that is a definition imposed from religious people - coming from within their own world-view framework. But humanism actually has a real-world definition. A real referent. It does not need classic religion to define it..