Complexity is only part of the answer,Amino acids are the building blocks of proteins which are the main substances of living cells. Amino acids couldn't link to form proteins in the beginning.
It would be like claiming that if bricks could form in nature they would get together to build houses.
Proteins are so hard to form that in all of nature they never form except in already existing cells. This scientific fact stands in direct contrast to what you students are taught.
Oh but it gets better. We know that proteins do not form outside of living cells,the amino acids from which proteins are built,there are two kinds. half are left handed and right handed, proteins containing all left handed amino acids will work in living things because proteins which contain any right handed amino acids have the wrong shape and will not connect properly to the proteins around them.
See the problem.the things that make up a cell can only be produced in something alive meaning life had to be created,life had to exist before a cell could be produced again.
I don't see why proteins could only be formed inside a cell. What prevents two amino acids from joining? Nothing I know of and it's something you'll have to explain.
First off let's read a quote from somone on your side of the argument.
The Nobel laureate Dr. Francis H. Crick, in his 1981 book, Life Itself insists that the probability of life's chance at origin simply defies calculation. Crick, an atheist, had this to say; What is so frustrating for our present purpose is that it seems almost impossible to give any numerical value to the probability of what seems a rather unlikely sequence of events... An honest man, armed with all the knowledge available to us now, could only state that in some sense, the origin of life appears at the moment to be almost a miracle.
Even the correct sequence of the right amino acids is still not enough for the formation of a functional protein molecule. Each of the 20 different types of amino acids present in the composition of proteins must be left handed. Yet, while some amino acids are left handed, others are right handed. Should they be formed at random in a organic soup, it is most likely that they would occur in roughly equal proportions. The question of how a specifically required combination of left handed amino acids could unite by chance, while excluding right handed amino acids, constitutes an impasse for abiogenesis.
Miller and urey's experiment produced both left and right handed amino acids and right handed amino acids prove to be lethal to living organisms. One other reason they can't connect is right handed amino acids have the wrong shape and will not connect properly to the proteins around them.