The Union won some concessions, I don't recall what (I was young, my two Uncles worked there).
To send the Union a message the Van Plant was razed over a long 4th of July holiday. When Union members returned to their jobs after the holiday they found they had none, the Van Plant no longer existed.
GM corporation really needs to be razed itself once you look into such things.
"Conversion van production at Lordstown ended when production of the Chevrolet van's successor, the Chevrolet Express, moved to the Wentzville Assembly in 1994, leaving Lordstown to focus exclusively on compact cars."
The assembly plant is still there, although GM shut down all production as of March 6, 2019. The plant was sold to Lordstown Motors on November 7, 2019. Still intact, definitely not torn down.
Clearly the rest of the Lordstown Assembly building is there for everyone to see driving on Interstate 80/Ohio Turnpike, which I do frequently.
I don't know what Wiki you are quoting but it is out of date. The plant structure was most recently part of Foxcon, clearly seen on the sign when driving by the building. The recent bankruptcy of Loardtowwn Motors and them suing Foxcon will lead to a sign change once again.
Loardstown Motors was frequently in the local news here mostly for not getting things done (to be polite).