He has bragged about using known techniques for coercing women into sex that makes him money - that is sex trafficking. And if someone is "a pimp" then that is exactly what they are doing.

Just as rape is not always holding a gun to a stranger's head in a dark alley, sex trafficking does not always mean abducting a runaway teen and locking her in a basement.

https://www.vox.com/culture/2023/1/4/23539528/andrew-tate-arrest-jail-rape-human-trafficking

"In a translated press release, officials said that the Tates recruited victims by making them believe they were interested in genuine relationships, then transported them to live in houses where they were under constant surveillance and forced to act in porn videos under threats of violence. The videos would then be sold online."

Tate has proudly admitted to some version of this already: The self-proclaimed “king of toxic masculinity” told the Daily Mirror that he and his brother once operated a “total scam” business in which 75 women were paid to talk to men for $4 per minute, and where the Tates would pocket most of the money."

He has been further caught on wiretaps bragging about this kind of thing.