We haven’t been able to create non chiral amino acids from basic building blocks.
Here is an interesting article from the Smithstonian Magazine: Must the molecules of life always be left handed or right handed?
The article notes that researchers are studying the question and trying to determine the conditions under which homochiral amino acids can form. From the article:
"In 2006, her [rb: Donna Blackmond of the Scripps Research Institute] team showed that they could amplify only the left-handed form of an amino acid starting from a small excess. In 2011, they showed that the amplified amino acid could then be used to produce a huge excess of a precursor to RNA, which is made right-handed by a sugar that is attached to it. (RNA is thought by many scientists to be the original biological molecule.)"
That’s because Nature says ‘abracadabra’ and you didn’t.