Darwinism was almost immediately politicized and used to bash Christianity, especially after the Civil War and the beginning of the 'Gilded Age'; J. P. Morgan subsidized Herbert Spencer's fabrication of 'Social Darwinism' as a propaganda tool to justify corruption and corporate thieving. This was the 'Libertarian' ideology in real life practice, warping the 5th Amendment, creating corporations as fictional 'persons' with limited liability, and generally being given hundreds of millions of acres of free land, free resources, and unlimited immigration providing cheap disposable labor.
And yes, the science is junk, too.