It is simply you not understanding how the mechanics of the game work.

First off, YOU ARE NOT "PHASED OUT" as you say. You have protection from everything.
"If a player has protection from everything, it means three things: 1) All damage that would be dealt to that player is prevented. 2) Auras can't be attached to that player. 3) That player can't be the target of spells or abilities.
Nothing other than the specified events are prevented or illegal. An effect that doesn't target you could still cause you to discard cards, for example. Creatures can still attack you while you have protection from everything, although combat damage that they would deal to you will be prevented."

Aclazotz, Deepest Betrayal's ability is "Whenever Aclazotz attacks, each opponent discards a card. For each opponent who can’t, you draw a card." That doesn't target anyone, therefore you are still affected.
"115.10a Just because an object or player is being affected by a spell or ability doesn’t make that object or player a target of that spell or ability. Unless that object or player is identified by the word “target” in the text of that spell or ability, or the rule for that keyword ability, it’s not a target."