Music Workstation Desk

Do you think I’m making a big deal ?
I have worked for the same place for over three years and have been moved around a few times and everytime I move I have to re set up my desk and work station on the computer. Well my company built a new store and our current building will be demolished. My boss is new to the company and is not letting me take my desk or my computer. He says just use the one up there. So I gave up on the desk but I want to use my same computer it has all my music downloaded into it and my stuff. If I switch computers I can log into them and use my workstation stuff but I loose eveything else. My question is am I being dumb and making a big deal for nothing ? Im fighting for my computer. I feel my boss doesn’t understand is being dumb. Im actual starting to freak a little bit about moving again.
I’d steal the computer and tell them 2 F*** OFF!
Universal music workstation synth computer desk DEKItm hammond style cabinet, ikea