[PurpleBoxDragon]

This is the sort of loophole that allows it to apply to everything. By going on a date with person A, you reduce their willingness to spend money on certain products associated with people who don't go on dates, and increase their willingness to spend money on certain products associated with going on dates. Therefore, the federal government can make laws about who you date, and dating becomes considered a commercial venture (so freedom of association wouldn't apply, same reason freedom of association doesn't allow people to bypass minimum wage laws).

This is stretching the law beyond any reasonable interpretation, done so by the same government who gains a lot of power by doing so.