I'm not blindly a fan of returning species to historical habitat. It is interesting. IMHO we need to be more careful about making things go extinct or driving them out of historical habitat but once they are gone, we need to look equally carefully at the potential side effects of restoring them to those places. By our very existence, humans change the environment. We are part of the ever-moving "balance" and will remain so 'til we go extinct in our own time. Trying to pretend that we have no effect .. and that our effects can be ignored, don't in turn require adjustments to other things, is naive. Everything in nature has ripple effects .. including us. Trying to manage as if we were not here and do not have to be considered as a factor is naive.s://cronkitenews.azpbs.org/2021/05/18/new-study-makes-case-for-jaguar-reintroduction-in-arizona-new-mexico/#:~:text=Conservation%20biologists%20are%20making%20the%20case%20for%20jaguar,males%20have%20been%20documented%20in%20the%20United%20States.
ps://www.smithsonianmag.com/science-nature/return-great-american-jaguar-180960443/
How that applies to jaguars .. I dunno, it's just a philosophical perspective. Maybe they should be brought back, maybe not. Depends on what their impact on that ecosystem would be as it exists today. Depends on how other changes to that ecosystem since they were "removed" might impact them as well.