There were leaders in negotiations with The West for years. It may be they are now taking on the policies they were exposed to in negotiations. The Taliban leadership did not come to their current status by permission of the people. I understand there were demonstrations against the Taliban insurgency that took over the country and the demonstrators were met with guns and violence.
The Taliban are not the legitimate leaders of Afghanistan, but, a coup occurred for whatever reason it did. It is in the Taliban's best interest to allow the USA to carry out an evacuation of people desiring to leave. It is the experience of the USA, especially with Iraq, that as soon as the country is viewed as orderly, respecting human rights, and a government representative of the people, the diaspora will return if that is their first priority. Not all refugees want to stay in a country where they are safe. They, in many instances, want to return to their homeland. The Taliban should consider that and demonstrate a society and government focused on human rights.
In the past and what the USA found in Afghanistan after ending al Qaeda's stranglehold on the country were enormous human rights abuses by the Taliban including public hangings of basically innocent women and men. The Taliban MUST do better and treat people with dignity and respect and win over their ability to trust them. A repeat of their past human rights record will bring many sanctions and dissension from the global community. That dissension was obvious in the UN Security Council meeting.