More like the US-backed Afghan regime FAILED to deliver and/or live up to the expectations of the masses across the board, alienating many Afghans due to senseless killings, corruption, lack-of-justice, or politics of revenge. These developments paved way for the Afghan Taliban to RE-SURGE in various sectors of the country, and now US finds itself in WTH situation vis-a-vis Afghanistan.
Americans are finally admitting it:
https://foreignpolicy.com/2019/02/0...-afghanistan-counterinsurgency-cords-vietnam/
Pakistan is no longer in the position to play host to US-led War On Terror in Afghanistan (struggling economy; struggling industry; pressures of global-warming); this is why PTI-led government have exerted lot of pressure on Trump administration and Afghan Taliban to devise a political solution for their nonsense in Afghanistan and be done with it. Pentagon had reservations but Trump administration is OK with this arrangement and we should hope for the best.
As for American embassy turning into a fortress in Pakistan - no point in fretting over it. American embassies are like fortresses in several countries in accordance with respective regional considerations. If you are concerned about Americans extracting meaningful INTEL from Pakistan then you do not understand how this game is played in large part and we cannot do much about it regardless; refer to you my previous post in this thread.
Pakistan's primary concern should be revival of its economy and industrial capability, and GOP have no choice but to work with US irrespective of how some people perceive US and US-PAK relationship on the whole. Take it easy.