You are right, I gave up too quick. Facing lost causes everyday, every single time, I took you for the same.
The Chinese project did not involve literally the highest mountains and terrain in the world. The entire gradient of the route from Tajikistan till Balochistan is positive, except where it drains into the Indus Valley and away from Balochistan. So, if we go the Chinese way, we have two options. 1) Literally pump
rivers worth of water every inch from Tajikistan to Balochistan or 2) build massive under ground tunnels which can carry rivers worth of water with a negative gradient for the entire length of Gilgit Baltistan, then again the entire length of KPK, and then pump all that water up hundreds of meters to the plateau's surface. Large enough pumps do not exist, neither does enough wealth in our coffers. Then, as the map you showed reveals, the water available near the border in Tajikistan is miniscule. It only becomes reasonable further down stream. Pretty sure we could find other means to water, e.g. water conservation (we use the
4th most amount of water per capita in the world). Or better ways to spend that money.
The Chinese topography predominantly slopes north-eastwards. For them it was mostly digging canals and letting gravity do its work.
On a lighter note: There was a conspiracy going around the forum a few weeks ago that the only reason why Balochistan and Thar don't have water is because the "northern elites" refuse to build canals to them from the Indus.
Wakhi are Wakhi, not Tajik. They are endemic to their lands in Pakistan, China, Tajikistan, and Afghanistan.
Maybe you will. Those who have more and are more, have different things to say.