Sram thumb lever issue Is there anyway I can fix this for it to function properly again, or am I gonna need a whole new shifter? The lever is cracked and broken at the collar where the hex bolt threads in so I'm guessing I'm screwed because it obviously won't shift now it just pops off the bottom of the trigger shifter
It's unfixable.

Depending on the model of shifter you may be able to get a replacement part, or find a used replacement shifter on Ebay.