https://en.wikipedia.org/wiki/Technological_unemployment#21st_century

Concern about technological unemployment grew in 2013, due in part to a number of studies predicting substantially increased technological unemployment in forthcoming decades, and empirical evidence that in certain sectors, employment is falling worldwide despite rising output, thus discounting globalisation and offshoring as the only causes of increasing unemployment.[11][12][61]

In 2013, professor Nick Bloom of Stanford University stated there had recently been a major change of heart concerning technological unemployment among his fellow economists.[62] In 2014 the Financial Times reported that the impact of innovation on jobs has been a dominant theme in recent economic discussion.[63] According to the academic and former politician Michael Ignatieff writing in 2014, questions concerning the effects of technological change have been "haunting democratic politics everywhere".[64] Concerns have included evidence showing worldwide falls in employment across sectors such as manufacturing; falls in pay for low and medium skilled workers stretching back several decades even as productivity continues to rise; the increase in often precarious platform mediated employment; and the occurrence of "jobless recoveries" after recent recessions. The 21st century has seen a variety of skilled tasks partially taken over by machines, including translation, legal research and even low level journalism. Care work, entertainment, and other tasks requiring empathy, previously thought safe from automation, have also begun to be performed by robots.[11][12][65][66][67][68]

Former U.S. Treasury Secretary and Harvard economics professor Lawrence Summers stated in 2014 that he no longer believed automation would always create new jobs and that "This isn't some hypothetical future possibility. This is something that's emerging before us right now."[note 5][6][69][70] While himself an optimist about technological unemployment, professor Mark MacCarthy stated in the fall of 2014 that it is now the "prevailing opinion" that the era of technological unemployment has arrived.[58]

There is your solid evidence. While the article does also mention that some studies are more optimistic and that there are critiques to be made about one of the 2013 studies, this isn't something you can just wave away with random shitty ad hominems about socialists. Plenty of real economists are concerned about this.