It is a simile because it is a figure of speech involving the comparison of one thing with another thing of a different kind, used to make a description more emphatic or vivid.
Answer/Explanation:
The logical fallacy presented is an ad hominem. The statement tries to prove that voting yes on stadium tax will make you a good person. Those of the opposing argument would have been "unloyal" citizens. This argument proves feelings rather than facts making it an ad hominem.
The phrase, "Voting on the stadium tax is the duty of every loyal citizen" is a true statement. However, adding voting "yes," specifies it to one side. The author then takes it a step further stating "in fact, it is the test of whether you are a good neighbor." In the long run, this implies that if you vote against us, you are a bad person.