The Minuteman stuff is optional your not forced into doing those side quest. If you want to rebuild the mintueman then do those quest. If not then go do something else.
O.K.
Take a deep breath.
Here is how Disassembly works.
Drop anything you don't want/need onto the ground in a place you "own", that is, any allied settlement.
Hold down the "V" key for a couple of seconds and this will bring up the Construction menu.
Mouse over one of the items on the ground.
Hit the "R" key to scrap that item.
Confirm your choice with the "E" key.
Congratulations!
You have just disassembled an item.
Repeat as often as necessary to collect all the items you need.
Hope this helps.
Please dont respond to the guy. It just diminishes the Genepool.
They don't require you to do this, as another user pointed out the fact you felt it was necessary shows how immersed in the game you were. Enjoy the game, make your own (good) choices
Bethesda played us like a damned fiddle! Wait...no they didn't.