I am robot?

I was amused some time ago to discover some of the leading atheists, secular humanists, etc. had become Calvinists.  They would probably not use that particular term but their reasoning amounted to the same thing: that there is no free will in the known universe.  We are all programmed through our genes or subatomic particles or what have you to do, think, and act exactly as we do from the moment after the Big Bang.  We have no conscious choice, we 'dance to the music of our genes' or so the saying goes.  You did not choose to wear that shirt today, the universe chose it for you at the exact moment when everything began.  Let alone such decisions as whom to marry, where to live, and whether or not you like broccoli (seriously mom, the universe won't let me like it!).  As with the ideas of the theistic calvinists, I find this concept hard to understand.  There is a huge difference between God knowing what we will do from the outset and Him making us do it.  We are not robots preprogrammed from the womb, but creatures capable of choice and therefore of love.  It is rather amusing that the hardcore atheists can come to the same conclusions as some branches of traditional theism!