The answer, so far, seems to be that people think that Jacob should think her actions of tricking and sacrificing her friends by harvesting their souls was something that was laudable because it created him or showed that life could be created.
Personally, I think that what Jacob thinks should depend on the outcome of the vote, as well as match the vote option descriptions.
The only reason why I'm arguing why what Perenelle did was
great is that I'm trying to give ideas on how the outcome of the likely winning vote should look.
Beyond that, I'm not particularly opposed to Jacob thinking what Perenelle did was great
If it results in Jacob gaining a sort of god complex like Light from Death Note, Medaka Kurokami from Medaka Box, or the Emperor of Mankind from Warhammer 40k, then I think that would be interesting character development.
So, if I understand correctly: are you saying that it is worth the harvesting of the souls of one's friends for 200 years to make a single person who has the potential to reach the highest potential in wizarding in any fields rather than having people pop up who are excellent in a few fields? You do note that beings such as Dumbledore or Voldemort already have such levels of power.
Correct any fields to all fields, and answer the problems connected to the following with "a single person with such talent".
1. The most obvious problem related to this is the Dementors that Jacob could take up the goal of killing in general.
2. The less obvious problem related to this is just that, less obvious problems. Sally-Anne would be facing a fate worse than death otherwise, for example. This is without going into Wizarding society being built in a rather problematic way.
3. The afterlife is questionable, so Jacob's creation could literally result in the salvation of all life, including that which has already died.
4. As much as we are told about the likes of Astronomy... we don't know what's out there. More than that, we have reason to doubt that anything is out there. In a universe where intelligent spiders can arise from normal spiders, poltergeists have come into existence from nothing, and humanity can evacuate the planet, the concept of the Great Filter is much more terrifying due to how much easier it for life to rise and thrive.
1. Dementors are created from negative emotions, and cause them. There exists the risk of the souls of all of humanity being consumed by these beings.
2. How can someone that isn't absurd like Jacob counter the likes of this consistently?
3. How can "a single, talented" Wizard gain insight on the afterlife, much less war against it?
4. How is it implausible for Perenelle to know, or competently guess, of some danger to intelligent life?