Isn't that a national poll, as opposed to a poll of Maine residents? I'm talking specifically about Maine, not about the USA as a whole.

Or “oppose the second amendment”, as you propagandistically say, because you dont have facts on your side.

Generally people who quibble about the term "well-regulated militia" do specifically oppose the second amendment. But the constitution of Maine doesn't have that ambiguity:

Every citizen has a right to keep and bear arms and this right shall never be questioned.