helltides are useful for one thing only: forgotten souls.
and forgotten souls are needed for one thing only: rerolling bis items (since non bis items, you can avoid to reroll more than 3 times at most - give yourself a rule, i decided 3 is enough for me - then if the stat you wish comes out you keep else you simply salvage, not worth wasting material on a non-bis item, you will drop others anyway).
and since bis items are scarce, and once you got those you won’t reroll countless times, nor replace anytime soon, in the end you don’t need countless forgotten souls.
so helltides are not unavoidable. you do few and have more than enough forgotten souls. then can simply avoid helltides from that moment on.