To address the OP, having no religion is optimal for me, and polite and considerate religion is what I prefer in others.
is that an indication that experiencing God isn't a literal event?
When we have one group of people claiming to have a certain kind of knowledge or experience, and another saying that they have no such experiences, how do we determine if the first group is claiming to experience something that is not there, or if the second group lacks the ability to experience something that is there? Easy. We compare the reports of those claiming to be experiencing whatever it is that we are discussing - in this case a god or gods. No two theists describe the same thing. That tells me that such people are simply experiencing their own minds and projecting that experience onto external reality.
Compare that to somebody with color blindness that makes red look like green to them - maybe both appear gray. If he shows red and green socks to people that claim to be able to see these colors, the answers from honest people with normal color vision interviewed independently will be the same. That's how he knows that they really are experiencing what they claim they are and not just pulling his leg.
If science is bad then it's bad science
Bad science generally refers to science performed badly - violations of the scientific method, whether just an insufficiently powered study such as a drug trial studying too few patients, or pseudoscience. Science performed properly is never bad, even when governments and industry put it to bad use.
if the global catastrophe I used in the example were thermonuclear and biological war you can see that people would quite possibly consider science irrational and detrimental.
That wouldn't make science irrational or detrimental. If those words apply, they apply to whomever used the science in that manner.
Look at what science has done in the last few decades for law enforcement via forensics, which has not only found and brought to justice uncounted numbers of people including in cold cases at times 20 or more years old, but has prevented the incarceration of innocents identified by eye witnesses in line-ups.
your morals did come from religion of old
Not in my case. They came from a combination of reason, evidence, and compassion as my intellect and conscience see them. I reject large numbers of moral principles coming from religions, and where we agree, it's not because of that religion. My values might be the same as some of theirs, but that is irrelevant to where mine came from.
are atheism and political movements types of non deity religions?
No. Neither is a religion as I use the word, which requires a deity and supernaturalism to be called religion. Worldviews based only on reason and evidence are not religions. Atheism isn't even a worldview. It's the state of being unconvinced that deities exist. Perhaps you're thinking of secular humanism, which is a worldview, but also not a religion.
Atheism makes one unable to live and let live
Again, no. Most of us are very good at that.
Most of what atheists object about religion is connected to the mythology of deities
Why would we object to that? We object to theists that try to impose their beliefs on others that don't share them. If that stops, I bet that most of us wouldn't give religion a second thought.