I will skip the "just war" theory, because I simply don't know enough to make a cogent argument
But
> attacks colonialism without explaining why Christians created colonies
Speaking as an english person with a passing interest in colonialism, this is an _interesting_ take.
Which colonies are you talking about? because the ones in America and Ireland were explicitly not catholic. More complex still some of them were super anti-pope, and a lot were just C-of-E catholic but sans pope
Could you explain more about your viewpoint?
> Francis, for example, did not write Laudato si’ entirely on his own. The first draft was prepared by the Pontifical Council for Justice and Peace, with input from other Church leaders. The document was then revised and reviewed by the Vatican’s Secretariat of State and the Congregation for the Doctrine of the Faith.
But I meant mostly those who share "Leo's" errors and write like him ("these people [like "Leo"])
so for example with "Just War" we see this passage:
> it is important to reaffirm that the “just war” theory, which has all too often been used to justify any kind of war, is now outdated.
This would clearly be thought to be an error from a Catholic viewpoint, because the right to wage "justified war" comes from the individual right to self-defense, as applied to a collective group of people legitimately defending against aggression (maybe lots of people here for example would argue Ukraine is legitimately justified in waging defensive war against Russia, for example).
Hence while it is good to promote peaceful resolutions of conflict, the document goes too far in condemning legitimate self-defense.
(So while the whole long document likely says correct things about AI and the dignity of work, it also adds in things like the above that Catholics would clearly reject. Typically Catholics would accept what a pope is writing so if you're getting someone who claims to be pope teaching erroneously, this points to a bigger problem for Catholics.)
> Catholic philosophy, therefore, concedes to the State the full natural right of war, whether defensive, as in case of another's attack in force upon it; offensive (more properly, coercive), where it finds it necessary to take the initiative in the application of force; or punitive, in the infliction of punishment for evil done against itself or, in some determined cases, against others.
"War" entry: newadvent.org/cathen/15546c.htm
By calling Catholic teaching "outdated", this sounds like the heresy of modernism (even if outright "abolition" isn't mentioned) - since for example these "older" teachings are directly applicable to current conflicts (people here might support Ukraine's right to defend against Russia, for example, under theories of justifications for war)
"Modernism": https://www.newadvent.org/cathen/10415a.htm