I too was faced with things I didn't understand- for me it was why did i have 2 disabled children when all my life I have tried to be a good person?
For a long time that led me to atheism (opersonally the lifes too scary without God doesnt work, i acept it may for other people, esp. those raised with a faith).
Eventually I cam to an undersanding on mant levels, I believe this is God's test for me: the chracteristics He gave me work for that, and also because my kis are not a 'bad' thing; they are happy. They may not fit societal nrms of ideal but hey nor do I.
When it comes to more severe disabilty I cannot answer, but at least Heaven would be respite they are guaranteed in my interpretation. I know thats not enough though.
I also recognise, and this is where mawmas post touches me, that humans are responsible for so much: free will, and also because I believe in dualism: chinese philosophy has its ying and yang, naturemale and female, food swet and sour, people good and evil.
My vicar was one of those who worked at Aberfan, digging out bodies. He said that was the greatest sadness there was and equally the greatest lesson: God gives us all we need, humans then choose to wreck it (by building gert slag heaps near schools) anyway.
For me christianity isnt about aafety, safety would be sharing the family cynicism- I know Dad in particular thinks i have fallen for a con. Thats OK. Its just not my take on it though.
sorry- virtually meaningless waffle!