What a great escape artist!
I've owned different breeds, and now only owned a Basenji for 3 weeks and from what I've seen with my Benji if there is somewhere he can not get to, he simply just wants to get there. Basenjis are real funny that way. He has not figured out how to get down wooden stairs to basement and it just kills him that he can't. Too funny.
Anyway, I had a baby gate blocking stairs to the 2nd floor. It worked a few days, then I came home and the bunji cords holding it in place were chewed off.
Due to stool problems (switching foods) I had confined him to a room (laundry room) for a few days just until he's stabilized. Yesterday I came home, my underwear were on the floor, he had chewed his brand new retractable leash in half, opened the closet door and pulled down some hangars, chewed some of my daughters crocks, and clawed the door frame like mad.
I somehow think these little guys just want to feel free and know that they are not confined. My Benji just HATES when a door somewhere is closed even though he does not want to go in there.
In your case, if he is being super destructive to your home or himself, you need to crate him and go from there. Crating is not a bad thing, you can make it very warm and cozy as if his bed. You might even want to make it is permanent bed and leave it open when you are home so he just sleeps there.
Good luck no matter what you do!