Your hub is not likely to have any problems unless it is neglected/abused, or you over-tighten the chain and/or swing arm pinch bolts.
If you inserted a wedge (with fully loosened pinch bolts) into the swing arm and expanded the pinch point just a tiny bit you should be able to get the hub to move. May need an extension on the tool kit spanner, and maybe smack that extension with a mallet.
But it will move. If it was seized solid you would also have massive corrosion in many other areas.
I used to be fast....now I just dream about it.
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'08 910R (Gina), '04 F4 SPR #275 Track Bike (Lola), YSR50 (The Rabbit), '71 CB100 (Lil' Red), '75 RD350C (Orange Bird) restoration project, '08 TT-R110 (Buster) Pam's ride, 2015 Indian Chieftain (Rita) my "low-n-slow", '70 Suzuki F50 (Baby Blue), 2018 Suzuki GSX-S750L8 (Susie Q)