Back in the day we had titanium halyard clips on the mast that clipped into the headboard shackle/ ring. Thus no weight on halyards.
On the JIB we had a stainless halyard lock that the head of the jibs "shackle" pulled into. Then used a Cunningham to tension.
Before that we had the last 2feet of the halyards spliced in wire ( where the sat in sheaves/ exit boxes)
Fixing the areas where they chafe is the solution for dyneema. Going smaller diameter will not totally eliminate chafe.