OK. But I respectfully disagree. What's the point of getting along with the same people who put elves into a position where they're kept poor, disenfranchised, and killed by humans simply because they're elves? The elves don't have a problem it was humans have a problem with elves, and what's the point of putting forth an effort to have unity with the same people who caused them harm?
Except that the events of Red Crossing show that it was Elves who (mistakenly) fired the first shot in the war, not humans.
The problem was also caused not by the Emerald Knight who was tolerant and accepting of coexistence with humans, but the insular, patriotic and xenophobic members of his order, who feared their kinsman was being swayed by humans and was abandoning his people and culture.
And from the scroll we find in Inquisition, written by one of the Emerald Knights actually present for the events, they actually admitted that what happened was their fault and they betrayed their friend but letting their hatred and mistrust of humans get the better of them.
Why did the humans didn't take a stand with the elves to fight against the system that benefits them and not elves? They keep them that way to see them suffer and they will always hate them, same thing with real life of why this world isn't a better place.
The humans felt justified in putting the Elves into a weakened position, forcing them to live in Alienages and banning them from carrying weapons, because they had just fought a conflict where the Elves were the aggressors. That doesn't make it right, but try to think of any conflict in history where the victor doesn't try to prevent the losing side from having the means to threaten them again in the future?
Granted, however justified the unfair terms were in the aftermath of the war, the 800 years of continued enforcement and oppression of the elves into second-class citizens does seem unnecessarily harsh treatment from most quarters of Thedas.
That being said, one can understand perhaps why it's not been changed, because those whom aren't racist are being prevented from reforming the system by those who actually are racist. No-one wants to commit political suicide by tearing down Alienage walls, nor a ruler risk their nobles or subjects turning against them should they try to do the same.
For as much as Celene tried to do to give Elves more opportunities, even she knew she could not simply abolish the Alienages and establish equal rights for Elven citizens of Orlais overnight. Even the small strides for Elves she had made were enough to have Gaspard and those whom wanted the status quo to continue, to conspire to launch a coup and try to assassinate her.
It's a complicated situation that needs society to change so that reforms can happen. You cannot however change a society overnight, as that will only cause tension and continued problems from those who fear change and what it will mean for their way of life.
That's why I believe separation is the best solution to have peace and to leave each other alone. The elves have a right to claim a place of their own to establish independence without human influence so they can heal and recover from the bloody history from humans.
As I said before, they already created a segregated and independent land, free from human interference, where they could heal and recover from a bloody history of oppression at the hands of humans... it was called the Dales.
It didn't end well for them.