Something that Luka may have picked up on is that his headache from hearing them speak is slowly lessening. It's getting easier to converse with Sxicq. More important than that is that he's starting to hear words... in common? In their words? There have been a few before now, but it seems like they're getting more frequent.

But Luka's pressing them on a complex topic, so maybe it's good that it's getting easier.

"Life nireqh qu ilz lost eqgmur iqg eqh aqhxalilz qu live zir. Eqg eqgqu eqg qu live zir nireqh nirus qu qu."
"Life should not be lost when it could choose to live on. Any who want to live on should just do so."

There's a shifting as they fold their arms, eyes locked on Luka as they clarify the most important part.

"Nir Iqg zir' zirkhqu death. Iqg eqg' fiilz quuzhuzh aqhxalilz qu qu die. Iqg iqg qu ilz weighed azh aa quuzhuzh fiilzrir death."
"But I don't control death. I can't make others choose not to die. I will not be weighed down by others accepting death."

They can't and they won't. They don't expect Luka to understand, either, because it isn't his responsibility to know how they think.

But they'll be surprised if he says he understands.