Having read the article, I was astonished at the illogical leaps. :o
I am a Christian
and a libertarian. I support free market economics, but I am
not a social darwinist, and I resent the assumption the author makes in tying them together. I support free markets for the same reason I support freedom of speech, freedom of religion, and all other aspects of individual liberty: Because it is right that people that people should be free to do whatever they want, so long as they aren't aggressing against others. Yes, even if that includes buying and selling goods and services.
And my study of economics convinces me that the free market is the system that, at least in the long run, brings the most prosperity to the most people, and allows social mobility.
You can have that along with a social 'safety net', and I don't really have a problem with that, but in doing so, you have to be very careful not to "kill the goose that lays the golden eggs"'; i.e., you can't pile on so many taxes, regulations and national debt that the economy struggles under an enormous burden.
Or you can, and you'll have a miserable situation like we have now in the US, with rising prices for goods but stagnant wages because it's a buyer's market for labor, persistent high unemployment and high underemployment, and an economy that seems to be stuck in quicksand, that just can't seem to climb out of the recession.