I'm not clear which removal is causing trouble.
Wheel from drum/ hub? Confirm someone in past hasn't switched a left side / left hand thread to the right side or vice versa so the threads operate in reverse - tighten when you would expect loosening?
Separating the wheel half sections to remove the tire? Does keeping the old tire matter to you (it looks well weathered...)? Lots of heat on the nuts and a serious impact wrench (but be aware that too much heat can cause pyrolysis - spontaneous, uncontrolled heat/explosion of the tire)? Chainsaw the tire off the rim and then fight the wire beads off the individual rim sections?
Drum/hub from axle? Maybe undo the lower adjusters and let them move into the drum and relax the shoes? BFH? Check for a seized parking brake cable?
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