Ok, I'll bite.

1) Universe cannot come apart at the seems as it has none and also nowhere to collapse to.

2) Viewing death as a negative outcome is as anthropocentric as it gets (exactly as viewing death as positive outcome in case of suicidal nihilists).

3) If you doubt objective causality, I encourage you to smash an egg against a concrete wall each day from now on. I predict that, if you use sufficient strength and manage to hit the wall, all eggs will break. It escapes me what is weird or monstrous about it.

4) Existentialism is the most hubristic and dishonest philosophy I know of. In its ignorance (and arrogance) it assumes the position of a tortured victim who blames their self-inflicted suffering on everyone and everything except themselves and who calls that imagined victimhood humbleness (see Sisyphus still thinking he can outsmart gods when he gets the boulder on the hill, well he was owned spectacularly and it was his actions that brought it upon him -- again, talk about that dumb causality :D)