Not to undersell Pakistani support for them, but these people were Afghans who got a movement going and were then supported by Pakistan.
With tens of thousands of recruits from Pakistan in the 1990s, many of the native Afghans who joined the movement having been educated in Pakistani madrasas, and the Pakistani ISI being key in both recruitment and training of Taliban paramilitaries.
Not really sure what else you want to call a movement that got the majority of its recruits from Pakistan, got most of its early successes from Pakistani support, including direct military support and training, was educated in Pakistan, and had a long-standing relationship subordinate to Pakistani interests other than Pakistani paramilitaries.