Then you oppose the broader SCOTUS ruling that goes beyond religion? This ruling is based on freedom of expression. In theory, deeply held political convictions should also be exempted from antidiscrimination laws. Theoretically, QAnon cult members are now free to run businesses that sell "creatively designed" services and goods that are denied to protected groups that they want to discriminate against. The previous wedding cake decision was about religion. This one goes beyond that.
"Creatively designed" is not something you can reasonably apply to most businesses. While I can't speak for her my position on this:
1) The item in question must be truly creative. Custom, not variation on stock and requiring actual creative thought on the part of the person doing it. (Designing the decoration for a cake: yes. Creating the provided design, whether from the customer or an in-house source: no.) I can't recall ever purchasing such a product.
2) The reason must be relevant to the product, not merely to the customer. If we go to the cabinet store it doesn't matter how vehemently the designer objects to miscegenation, there's nothing about races in cabinets.