"Intense, even perfervid opposition from haters and stoppers"

More rhetoric.

In logic and rhetoric, a fallacy is incorrect reasoning in argumentation resulting in a misconception. By accident or design, fallacies may exploit emotional triggers in the listener or interlocutor. An appeal to emotion for example.

Let's take the word haters in Amos's statement.

Does it imply that anybody that opposed anything in the bill and wanted changes is hateful?

Yes it does and it attempts to turn people against anyone who opposed the bill by describing them as hateful, via rhetoric.