Well for one you did install one of the worst available lifts you can install on a KJ. Not being a jerk, just not a good lift.
Even at that a good alignment shop should be able to align it within reason. They may not be able to get it dead on but good enough to have it go down the road straight and not wear the tires.
Now JeepinByAl does have aftermarket UCAs that are a tad bit longer to help with alignment issues and also to have the UBJ at a better angle.
Lots of alignment shops think there is no way to align a lifted Liberty but it can be done.
Also measure from the middle of your front wheel to the bottom of the flare to see just how much actual lift you got.
I always have to laugh at their install directions, you can tell they did not have a clue as to the best way to install one. Doing a lot of things not needed!