It won't make any difference who chooses to defend a small church against against this assult on their 1st Amendment rights. The 2nd Amendment is undermined again & again by activist liberal judges, and they will do the same thing to churches who do not perform same sex marriages, irregardless of what the 1st Amendment proclaims.
If judges rule against Christian businesses for refusing to provide wedding cakes to homo couples, why would they not rule against churches or pastors who refuse to perform same-sex marriages. It's only a matter of time before judges will declare anyone who opposes same-sex marriages to be declared hate-filled homophobics who could lose their children or property for refusing to endorse & perform same-sex marriages.
Businesses as a rule are dealing with the general population. The law requires that any goods or services that they provide to one segment of the public, they have to provide for any other. Churches are dealing with matters within their own congregations, not the public.