ATHEISM IS A LACK OF A BELIEF MUMBO JUMBO WHY?

Atheism--is the belief that their is NO GOD. But I cannot tell you how many times in my debates with Atheists I have heard the Mantra, "Atheism is simply a lack of belief." Well you Atheists need to get it together. Most of the more educated Atheist Scientists have stopped using that COP OUT, and I am sure they have their reasons why. Video examples of Scientists realizing that the Universe (from an Atheistic Perspective) must of come from nothing--AND IT PRESENTS AN UNANSWERABLE QUESTION FOR THEM. AT LEAST THEY ARE HONEST WITH THE SCIENCE AND ITS IMPLICATIONS:
1) Albert Einstein: https://rumble.com/vho2tx-einstein-disliked-the-expanding-universe-sounds-too-much-like-bible.html
2) Robert Jastrow: https://rumble.com/vdjcux-the-insane-atheist-we-get-everything-from-nothing-impossible.html
3) Brian Cox: https://rumble.com/vd5gp3-atheist-faith-statement-about-the-beginning-of-the-universe-is-i-dont-know.html