You're going about this the right way . No hurry .
Possible to show some photos ?
Highly unusual that loctite is involved on grip screws but of course anything is possible . More commonly I see old/dried oil turned to "varnish/glue" as the cause of stuck screws . Applying a drop or two of Hoppes 9 on the threads and letting it soak will usually soften the "glue" . In your case as the escutcheon is spinning it'll be a challenge . After soaking try the screw again while apply firm direct pressure on the escutcheon in an attempt to prevent it from spinning . Maybe use something with friction like an eraser head or rubber that would prevent turning .
On occasion I've needed to apply directed heat towards loctited screws and used a steel rod maybe 1/8-3/16" dia heated with a propane torch . Heat the rod and place directly on the screw tip/escutcheon end .
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Did you "Super Glue" the escutcheon to the stock panel in as suggested? (You do not say you did. If not, why not?) Did you put some penetrating oil around the screw threads? (You do not say you did. If not, why not?) If you did all of that and that did not free the screw, you are at the point when the screw needs to be destroyed if you really want to remove the stocks.