"Why wont God heal Amputees?" is a very fundamental question in denying a god.
Why won't he? Something like 50% of Doctors believe in miracles yet, for some reason, amputees will not magically regrow limbs. If we're to assume that a cancer patient on the brink of death makes a sudden and unexpected full recovery and goes on to live a happy, healthy life until dying of natural causes is a miracle, then surely a child stricken with necrosis who undergoes an amputation, but whom regrows a limb is also entirely possible under the power of God, right?
I've tried talking to Christians about questions like this and it never works out. For every logical jab you have to make at the imperfect perfection of their Lord they have another veil of rationalizations that need to be poked at. My grandparents outright refuse to even listen to any of it and say something like "You can't play games with Faith, you just have to believe," which is the dumbest stuff I've ever heard in my entire life.
Christianity, and Religion in general, I have decided, is dying. People are no longer believing in what their parents do because of the magic of the Internet. Having the sum of all human knowledge at your fingertips and access to every antithesis centric to supernatural beings is dealing more damage to the numbers of church-goers than direct conversations and discussions about these topics in the comfort of a living room. Children getting curious and typing in "no god" in Google (as I did when I was 9) leads to questioning which leads to discoveries which leads to the disavowal of something unprovable and outright detrimental to the Greater Good.
I do not believe that Religion will disappear in my lifetime, but I think the time is coming within the next 60 years that less than half the Earth's population will be religious, then it's just playing the waiting game until the last generation of faithful die.
