I'm aware of the denazification period following the war, but just because people complied with the new laws doesn't mean their attitude changed. I find it hard to imagine that after decades of anti-semitism culminating in Hilter's mass deportations of Jews, people would be like "Oh hey, our Jewish neighbours are back. Cool." For example, in post-war Poland around 400 Holocaust survivors were killed and anti-semitism was pretty rampant, to the point where most Jews decided "Fuck this, we're emigrating". While denazification probably curbed this in Germany, I still can't imagine the public sentiment shifting from mistrust/hatred to empathy/acceptance overnight.

(Obviously a degree of anti-semitism still exists in pretty much every country including Germany, so I'm not saying it disappeared completely after WWII, just trying to gauge the general consensus of the time.)

Also if anyone wants to chime in with attitudes towards non-Jewish Holocaust survivors in post-war Germany, I'd be keen to learn about that as well.