that is where string theory and other subsets of quantum theory come in. The quest for a unifying theory that brings quantum theory and general relativity together. A "Theory of Everything". Yes, so far none has been proven but string theory is currently the favorite even with all it's mysteries.
String theory is an interesting mathematical model that elegantly solves some problems of past models however it also creates new questions and issues. Some physicists believe these can be worked out, others feel they are fatal flaws that point to a model ultimately to be abandoned. Only time will tell who is right.
However, it's interesting that string theory is currently the favorite unifying theory among physicist. Most climatologists believe in anthropomorphic climate change as well. Do you believe in man made climate change because you put your trust in the experts in the field? If so why do you have more respect for climatologists opinions than physicists? You are clearly not an expert in the field so why do you disagree with the majority of those who write the peer reviewed papers on this subject? In my wildest dreams I could not begin to decide if string theory's calculations work or don't work. I will leave that to the experts and because I am a rational person I am going to go with what most experts in the field believe not with my gut feeling or because it sounds far fetched.
Currently String Theory is the closest theory to the "Theory of Everything" physicists have come up with.
http://www.pbs.org/wgbh/nova/physics/theory-of-everything.html