Interpreting evolution as "dog-eat-dog" or "cutthroat" is something that could only come from a left-leaning brain. There is nothing moral or immoral about one specie thriving and another going extinct. All extinction means is that one particular specie couldn't hack it. One specie thriving just means that it's capable of doing well. Each individual organism on the face of the planet is going to die some day; evolution just explains why there are more of one organism hanging around at any given time than another.
Same goes for a firm going out of business in a capitalist economy: all it means is that the firm was not serving its consumers well enough and at a low enough price, or that someone else was doing it better. To describe this process as "cutthroat" requires a sentimental attachment to an institution that is ultimately counterproductive.
These people would have the government subsidize the buggy whip industry. Never mind that people don't want or need buggy whips anymore, letting the industry die would just be cruel. Purely emotive garbage like this strangles economies. The sooner that people figure out that nature has no conscience, kindness, or ill will, the better.
Evolution via Gresham's Law?