KEY POINTS
  • Tech investor Roger McNamee and NYU Stern School of Business professor Scott Galloway have been arguing for the regulation of big tech.
  • Companies such as Google, Amazon and Facebook now concentrate power and stifle innovation, they say.
  • The two said monopoly concentration is an age-old problem for the U.S.

Silicon Valley's biggest companies have gotten so powerful that at least some need to be taken apart, tech investor Roger McNamee said Thursday.

"I'm OK with Google being a monopolist in search. What I don't want them to do is to use that power to eliminate pricing engines in Europe. I don't want them to use it to make their photo search and all these other things," McNamee told CNBC's "Squawk Alley."