If the strut mounting bolt is the issue stopping a socket from being used, remove that bolt only to facilitate removing the caliper bolt. If the top strut bolt is tight, the strut shouldn't move and your alignment should be okay.
The other possibility is to make a short 6 point socket to use, a bench sander is your friend here.
Big thanks Andy and to all others for suggestions! I don't know why I didn't think of removing the strut bolt. Got that out of the way and my 6-point socket on and a little torch action, broke loose and came right off.