Because, any reasonable person if they look from an outside view can see which is the real God.
Yeah, none of 'em.
The "any reasonable person" argument doesn't work when you define "reasonable person" as "anybody who agrees with you." That's circular reasoning, if you didn't know.
I mean vishnu worshippers I have never came across on theses sites, so I'm sceptical about your figures.
That information is usually concealed in "books", so I'm not surprised you might have missed it. Get an almanac. Look up India's population figures. Vishnu is a Hindu god, and the Indians are Hindus.
Now figure that since India has one of the highest rates of poverty, out of those billions of Hindus, almost none of them have computers and the internet.
Jeez, use your brain for a minute.
it's obvious that even the athiests know if there is 'God' the most likely one that could be him is the biblical one.
Here's the real explanation.
We all speak English. In the English-speaking world, Christianity is the dominant influential religion. Those of us who think religion is a sham - atheists - tend to wind up arguing against those who think religion is real. Since we can hardly argue with people who don't speak our language, we tend to wind up arguing with Christians the most.