have Genji/mercy ever run into unsupportive people in public (anti-omnic, anti-overwatch, etc...)
Yeah they have, more than a few times. In the weeks of UN hearings following the explosion at Zurich, the UN had to give Angela a security detail to escort her to and from the hearings. Like there was a while after Overwatch’s shutdown that Mercy had dyed her hair brown and was doing the whole ‘sunglasses in public’ thing to avoid recognition and confrontation with people and she was like, severely depressed and barely left her home for several weeks until there was this severe earthquake in Greece and like… she just couldn’t stand by and do nothing about it and that was how she first started getting into relief work. From there, there would be a lot less confrontation because at the end of the day, even though there are some people who are like “Don’t think what you’re doing is ever going to make up for what Overwatch has done” mostly the response to Angela Ziegler coming in to do relief work is…well… relief. Mercy’s field missions with Overwatch were largely medical aid in the wake of large-scale attacks and disasters, so while some people criticized her as a PR puppet for Overwatch, as Angela’s work went on, it became pretty clear to the public that Angela had joined Overwatch (while criticizing its militant approach to problems) for the sake of using its resources to do good.
Genji’s had a beer bottle hurled at his head in King’s row (some jerk mistaking him for an Omnic), and he’s experienced anti-omnic sentiments just by hanging out with Zenyatta numerous times. Like, it’s unclear how much of Blackwatch became public with the UN investigation, but I feel like if it was revealed that Genji Shimada was miraculously alive, Hanzo would have known about it by ‘Dragons’ so I assume Genji’s identity was still kept classified even in the midst of UN investigations. So most aggressions towards Genji tend to be more anti-omnic than, “Hey! It’s that dude from Blackwatch.” As I’ve said before, if you’re a very well known ninja, you’re probably not very good at being a ninja.
They’ve gotten some heckling while being together in public, but people are a lot less willing to be confrontational to two people than to single out just one, so it’s mostly just brief shouted harassment by people who don’t have the guts to follow through.