Actually there's no commercial question here; the letter writer is being asked to bake a cake for her
nephew. It's a family favor. That's why she's writing to Abby; it's a question about family protocol. She doesn't even say she has a business.
That's what makes this thread such a head scratcher.
Well, that, the "Abby is a bigot" non sequitur, and the gay hunter thing...
ItÂ’s more than just a head scratcher, the premise of the thread is comprehensively ignorant and wrong.
As already correctly noted, public accommodations laws apply only to commerce, the woman writing the letter is not a business, as the primary focus of her livelihood is not baking and selling cakes.
Public accommodations laws that prohibit discrimination against gay patrons are predicated on Commerce Clause jurisprudence where to allow such discrimination will have an adverse effect on local markets and all interrelated markets; these laws are appropriate and Constitutional because they seek a proper legislative end: maintaining the integrity of the markets (
Wickard v. Filburn (1942),
Gonzales v. Raich (2005)).
Moreover, should public accommodations laws also have the effect of combating discrimination, they would remain Constitutional pursuant to this legitimate goal (
Heart of Atlanta Motel Inc. v. US (1964)).
The OP attempts –and fails – to make some sort of comparison between someone refusing to bake a cake because she is opposed to hunting and someone who refuses to sell a cake to a gay patron because he ‘opposes’ homosexuality. The OP does succeed, however, in exhibiting his ignorance of the fallacy that results when one seeks to compare two completely different, unrelated things.