As Vice Chair of the TU Board of Trustees and Chair of its National Leadership Council, I can tell you that Trout Unlimited has a clear policy of not stocking non-native trout on top of native trout populations that are struggling to survive. The intent is to allow the natives to fend for themselves without intruders. There are plenty of other waters where trout can be stocked that don't damage native trout populations. I live in Texas and our TU chapter has for decades stocked a variety of trout in our home tailwater, all done in cooperation with our state parks and wildlife organization and with the blessing of TU National. In fact, our chapter won their Gold Trout Award two years ago as the top TU chapter. So TU is not opposed to stocking fish, just to stocking on top of struggling native populations (like the brookies mentioned above).