I utterly reject your assertion that patenting life forms is evil. There is nothing wrong with it. Indeed, patenting crop plants can greatly contribute to human welfare. I consider your interference with that for spurious reasons to be the evil here.
Utterly rejecting won't whitewash it and excusing this with "contributing to welfare" is double evil in itself.
Those who wanted to contribute to welfare wouldn't have tried to patent it. Like those in the above link for example. They contribute to welfare, not the scum like Monsanto and Co.
I'm just informing you that your ethics here are without rational foundation. Why should anyone care one iota what you consider to be evil, if you cannot justify it? This merely reflects your irrational phobias, not anything anyone else needs to take seriously.
Yes, you are the touchstone that defines what ethics is. Everyone else must bow down to your pronouncements; asking for justification is not allowed (is that also "evil"?)