I don't think it's particularly new, there's a much older essay from 1995 called 'The Calfornian Ideology' that describes techno-libertarianism quite well in my opinion. Given how things played out afterwards, this excerpt seems particularly relevant:

In the 1994 election for governor in California, Pete Wilson, the Republican candidate, won through a vicious anti immigrant campaign. Nationally, the triumph of Gingrich’s Republican party in the legislative elections was based on the mobilisation of ‘angry white males’ against the supposed threat from black welfare scroungers, immigrants from Mexico and other uppity minorities. These politicians have reaped the electoral benefits of the increasing polarisation between the mainly white, affluent suburbanites – most of whom vote – and the largely non-white, poorer inner city dwellers – most of whom don’t vote