Your problem here is that evolution is not a person, but a process. If we lived near a star that was about to explode and kill us all, would you say

"Physics says stars should explode [so it's morally okay]"?

The unfortunate truth is that the universe is entirely "amoral" – it has no consideration for "right" or "wrong". Tomorrow morning we could all be wiped out by an asteroid, with no consequences for the rest of "creation" at all.

Anyone with any comfortable ideas about 'deism', or who believes that we can extract moral guidance from nature, should consider these facts:

1. Every few hundred million years there is a "mass extinction event" on the Earth, in which billions of living things are senselessly wiped out.

2. The entire history of life on this planet has been one of "dog eats dog" – living things compete to survive by murdering each other.

3. Even evolution is a terrible, terrible process with huge amounts of waste. Even if you consider the human body to be well-designed and efficient (and it still has many flaws), remember that for us to reach this point it was necessary to create millions of "broken beings" – humans susceptible to terrible diseases who died out and took their flawed DNA with them. Imagine: you design something, only to find it's terribly broken (and perhaps even suffering). Do you (a) fix all of the problems and produce another prototype or (b) fix a small part of one problem, build millions of prototypes (all of whom suffer) and see which one does best? The religionists dream that there's a God that performs (a), but in reality it's evolution that performs (b).

Be grateful to be alive, and thankful that the human design has improved to a point where we can at least 70 years (still short!) before things start falling off!

It comes down to being aware of one thing: where the animal products you buy today come from. I am sure there must be a movement with a label that would indicate that the leather was a by-product of the animal food industry.