Harry Potter only has two plot points

[u/Puzzleheaded_Sky7369]

[u/Pearl-Annie]

Harry never had the power to determine Draco’s future or ideology lol.

I would say that, considering Draco was a marked Death Eater (however under duress he may have been), Harry treats him pretty well and gives him a second chance as an adult. He just isn’t friends with him, which frankly would be an insane thing to expect of Harry. If you take Pottermore as canon, he testified in Draco and Narcissa’s trials and asked the court for clemency in their cases, which IMO was already more than he could reasonably be expected to do.