Ghasts shouldn't fire at you when near a Nether portal

Ghasts should not fire at you near any Nether portals/Respawn Anchors.

Currently, Ghasts are something you have to constantly look over your shoulder to avoid. This is especially true when you are located at your portal or Respawn Anchor. There have plenty of instances where I have spawned into the Nether via portal and gotten instantly shot at by a Ghast while the portal texture is still on my screen, warping my vision. This also applies to situations where I arrive back at my portal, get randomly fireballed by a ghast, and there goes my portal...

My solution is this: Make it so that the Ghast ignores you ONLY when you are within 10-15 blocks of a Nether portal/Respawn Anchor. This would greatly improve gameplay experience, as it would make you less concerned with protecting yourself from floating creepers and more invested in exploring the dimension more widely.