one day, some sick mind will do a study with a baby who is only exposed to AI without any real human contact

Ted Chiang (sci fi author: Exhalation, Stories of Your Life - basis for Arrival) has a short story about this. Darcy’s Patent Automatic Nanny

Rather unethical experiment for interstellar colonization mission planning.

and will find out that the outcome is better than mean (if it includes cuddling and stuff)

Wanna bet?

There is no basis to believe that.

Convincing someone of something doesn't make it true or real.

caught in the wild, the moving goalposts of the Turing test