^ Convieniant, if you're able to post comments, you can post scans.
1. Did you even bother to read the pages for Acausality and Time Paradox Immunity? Here let me do the leg work for you because you couldn't be bothered to read relevent sources for a websites you're active;y using:
TPI : "A lesser form of
Acausality, this ability is attributed to characters who can interact with others as per the laws of cause and effect but will not be affected by events that happen to their past selves. Hence, if they were killed in the past, it would not affect them in the future."
Acausality : "
Acausality is the ability to be unaffected by attacks reliant on cause and effect or changes to the past. For example, being killed or having one's history changed a significant amount of time in the past through
Reality Warping will not affect an Acausal character in the present or future."
2. Nothing you have said has implied that Vecna's precog is worse than Bibibi's, only that Bibibi's goes further into the Future, not that it's more potent or that Bobobo could resist it.
3. No, not at all, nothing about it is a NLF, gasp, Spells can Negate Ressurection, the spells I listed negate Reality Warping Ressurection (Wish) and Absolute Ressurection (True Ressurection) even if both are used at the Higher spell slots of 25th spell level.
4. Yes, it is actually Conceptual and Plot Manipulation, as he'd be removed on a Conceptual level as a God, as well, when the entire Multiverse reset, so did all the plot, all the ideas, everything reset with it, things infact changed in 3rd Edition and so did the Plot as a whole.
5. However, unlike you, I have backed all my statements up with sources from "Die, Vecna, Die!" and the 3e Deities and Demigods Source guide, everything you said is from word of Mouth (Or text in this place. So, no, it doesn't "debunk" everything I've said, because you cannot debunk correctly sourced statements. Additionally, you seemed to forgot that significant Detail, that he has to turn the Reality he's into Bobobo world, which is very Important, as Vecna would instantly use Wail of the Banshee and would go for the Kill, additionally, he would do BFR, Ressurection Negation, Conceptual attacks, and use his secret technique to kill those whom he has the secrets of, since you've provided no sources to your claims that Bobobo could stop Vecna from seeing his past, and most of all from someone who is on par.
6. Good job Vecna can undo it all with just a thought.
7. It is, because Vecna can cast 16th level spells, for example, Demigods, who are seen as Mortals to Lesser Gods passively destroy a Seal which is holding the Multiverse together, so the Demigods have Multiversal+ AP passively by just existing, and they can only cast 9th tier magic, possibly 10th if they have high enough Intellect.
For further context, Wish spell is determined by it's user, so while a Mortal can say alter the face of reality itself, a Deity can casually preform that and much more, ignoring the fact they can cast it at higher spell levels, and even then the spell is said to have no limits. (No, this isn't a NFL, the spell, like I said, is based on whoever is casting it, so someone with low magical power can't do much with Wish if they somehow get it while someone with loads, like a God, can do a lot.)