Whose way is “not” Just?
The “people” for the LORD is always Just as it is written:
“Yet your people say, ‘The way of the Lord is not just,’ when it is their own way that is not just.” (Ezekiel 33:17)
The “imperfections” and “injustice” in the world are “people’s way” while the LORD will “straighten” and “correct” these ways in His Time eventually, some in this life itself while others later (both literally & figuratively meant in the passage below in His Coming, be it the first or second):
“Every valley shall be filled in, every mountain and hill made low. The crooked roads shall become straight, the rough ways smooth.” (Luke 3:5)