Interesting that you blame it on Lincoln when the President has no constitutional role in creating a state.
West Virginia was created when a anti-secession segment of the Virginia legislature broke away and petitioned the U.S. Congress to be recognized as the legitimate Virginia legislature. This was done and a loyal governor, senator, and congressmen were chosen and sent to Washington. This legislature voted to partition Virginia into two states and requested permission from Congress to do so. Congress granted this permission and West Virginia was formed and later admitted as a state. All proper and within the bounds of the Constitution. Was it legal? There is some question as to whether the Virginia constitution was violated in terms of quorum for doing business, but that would be a matter for the courts to decide. But as to your claim that it was unconstitutional or impeachable. Nonsense.
Your disingenuousness is showing again. We've seen the paper trail, and it leads to Lincoln's door.
Knock it off. You must think everyone on this thread is your personal chump.