Well, there’s not really any bad blood because of WW2 because the GIs treated the locals mostly with respect, handed out candy and so on. And not many Germans regret having lost that war.
During the cold war there was some resentment from the left because of the danger of a shooting war, not specifically because of Anti-Americanism, I think.
One remnant of that is that our foreign minister wants to get rid of the remaining nuclear bombs on American bases in Germany, but that is because of the anti-nuke leanings of most Germans.
In recent years many US bases were closed or planned to be closed, and I think the locals overwhelmingly would prefer them to stay, because they bring money into the local economy. It’s not because of security considerations, however, it’s felt that the current EU environment is safe and stable.