If they wanted their novel definition incorporated into law then get the law changed.
To protect against judicial novelties citizens in several states have followed the legal procedures required in that State, procedures enacted by the elected legislature, to have placed before the voters a proposed amendment to the State Constitution. To have such a proposed amendment placed on the ballot is no small undertaking, typically requiring a large number of signatures collected in each district. The proposed amendment must then be adopted by the voters, typically with a requirement that 60% or more voters must approve for the amendment to be adopted.
There is nothing stopping them from doing likewise so that their novel definition is incorporated into the law.
There is no *right* to legal recognition of any grouping of persons assembled for whatever purpose.
Judges are not Legislators. For judges to impose upon society a novel definition, to aid the advocates of the novel definition to obtain what they could not obtain Legislatively is tyrannical and beyond the authority of their Office. The opinion of these judges can and must be ignored.
I wrote letters to Brown, Portman, Kasich and Kaptur. I will post the responses if and when they come in.