Atheistic rulers have also caused war, not just the ones who take it upon themselves to supposedly do God's wars. It is not limited to only a certain category of people. War is caused by somebody's greed, and once started, it doesn't just end. Revenge from a defeated side comes sooner or later and it is nothing new.
Anybody can claim to use the name Jesus to make war somewhere. But what does Jesus say? He says his kingdom is not of this world. So that takes the basis for any war done in his name as invalid. There were some who wanted to make Jesus as King of the Jews but he refused to be. The kingdom of God is within you; not in property or land area or in politics or military or in converting other people. Jesus isn't religious and he does expect followers to be non-religious.
Science and education of the kind you mentioned also puts whole populated areas for experimentation without the inhabitants' knowledge. This has happened and is still going on. Education is being used to suppress info. Education is also being used to enslave people. In the US by the time one graduates, there is an average of close to 30,000 $. So where is the freedom so-called? A person in debt is basically a slave to the lender, no matter what other terms and expressions used to describe the same. Man's greed is forcing many nations into slavery too, as more and more nations fall into the traps of the big money lenders. These same money lenders are not religious in any known way, and for all one knows may be atheists.
As for those who follow Jesus, I suppose they do so because Jesus turned out to be real, and had a major impact in each of their lives, like it happened for me. So it doesn't matter what insinuations thrown around about Jesus, he is exactly as he is described. He is probably one of the first one to empower women in a big way. He doesn't seem to be bothered at all the spoiling of his reputation, and doesn't tell his followers to stand up and defend him. I follow him not blindly, but knowing well enough.
There is superstition going on big time even today. Just look at the medical field – there are hundreds of research done on many diseases, and all they can come up is to tell you to take medication for the rest of your lives. And many people follow that blindly. It is funny; they cannot fix the problem fully, but can do it partially to keep extending till the day you die. What did all the education and science do with regard to this modern-day superstition?
What about economic superstition? Many wealthy people are wealthy because their wealth is measured in stocks and investments and yet there is no guarantee it will be converted into wealth of actual value (shelter, food, health, etc). Every time the stock markets rattle a bit a bunch of people become overnight paupers. The wealth was only in numbers and in paper.
Millions of people sign up for social networks like Facebook, Whatsapp, etc and use free email services, even after knowing that they put their privacy at risk of theft and abuse, while at the same time profiting the owners every day. They don't realize they signed a contract (international one) with the owners basically signing away everything for supposed freebies. What has modern education taught about this mass herding to propped up ideals (modern gurus and babas)?
Knowing about these things I find it better to stick to Jesus and believe his unfailing promises. He is not known to betray or deceive unlike these other entities. Reading scriptures helps clear the mind from the daily materialistic bombardments and alerts me to spot fakery when I come across it.
I find arguing with atheists interesting and learn something from that, while providing some info and entertainment for any who hears/watches this. Actual spoken debate is good jaw exercise and can even remove double-chin! About flat earth, that is a different topic (suppression of information/deception) and it doesn't matter flat or global, as far as acknowledging the Creator and showing our thankfulness.