So...why, again, is it that not believing something for which there is no proof is termed "philosophical mumbo jumbo"? Methinks once again, the theistic majority has determined the language that will be used, and can dictate which beliefs one must be "responsible" about. Sorry, but I am not going to do the legwork of trying out every religion in case one holds water. I have my beliefs; there are, likely, an infinite number of possible beliefs that I do not have. The rules and practices of the beliefs I do not hold are not mine.
Have you shirked the responsibility of holding a belief in the debate about whether the former Craig family property should be developed into a practice field, although it is a mere 70 feet from residential homes? This is a very real issue, affecting very real people. True, it is one of the millions of billions of things you cannot be expected to care about, but there is, at least, evidence that you could examine to help you come to a conclusion.
(Which brings up an odd point. I can care deeply about the behavior of religious individuals; I can care about what various religious institutions have done, positively or negatively. Indeed The Atheist has demonstrated that he has strong feelings on these issues. This is quite separate from the issue of theism and atheism. Where is the "responsibility of holding a belief" about a topic that is unfalsifiable even if evidence could possibly be clear...which it never is. Sorry again, but as Interesting Ian used to say, I can't be arsed about this.)