I NEED HELP!

I can't unscrew the solenoid from the master cylinder, sprayed some penetrating lube on the threads but still no go. I am trying to swap out my master cylinder but OF COURSE it won't go smoothly.
Any ideas from the gurus? I've already wasted over an hour and a half. I need to get this done and get my brakes bled for tomorrow's trip so I am desperate.