Ant Man's setting is to reduce the distance between atoms, resulting in a decrease in volume, but only to reduce the distance between atoms, so the density increases and the quality remains unchanged;

Personally, if the density is high, the hardness will increase. For example, hollow iron balls are easy to break, while small solid iron balls with the same mass have higher hardness.

So the relative quality of baseball is the same for Ant Man. You can imagine that a baseball is magnified, but the same mass hits you, lighter than a balloon.

As for what you said, the number of "dangerous rovers" around the Pacific has decreased, and the quality has remained the same, which is equally powerful.

Your question reminds me of Dragon Ball. The Muppet turned Goku and Vegeta's Super Match 5 into a sugar ball, but it was hit by the sugar ball, and the sugar ball is more flexible because of its small size.