May 17 is the ninth anniversary for marriage equality in the Commonwealth of Massachusetts. In the past nine years, not one individual, not one family, not one religious or civic organization has been harmed by secular equality. Not one.
The average fifth-grader understands that some words are spelled the same but have completely different, unrelated meanings. For example, "nut" can mean: (a) an edible seed, or (b) a manufactured part used with a bolt to hold stuff together.
Similarly, "marriage" can mean: (a) a religious ceremony, or (b) a collection of legal benefits and protections defined by secular law.