Tim, you've got it wrong. Your analogy doesn't work for the topic as the meaning of the word "splice" has different connotations in this case.
When you're talking genetic modification, to "splice" is to insert foreign dna that the plant would not, could not, come across naturally. Example; modifying the genome of a plant to make it resistant to herbicides. Take cannabis, for instance, which does not naturally resist the effects of glyphosate (Roundup). If one were to genetically modify the DNA of cannabis by inserting a certain gene that makes it able to resist the effects of glyphosate, you would have
created Roundup-Ready cannabis, which we can agree is
not the same as breeding. Said gene can be found in several weeds that have, or have developed, a natural resistance to the chemical. (See the picture below, I'll also link the source) But you cannot create the same resistance in cannabis by cross-breeding, reversing females to produce pollen, or any other method of breeding, conventional or otherwise.
View attachment 4174389
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.extension.purdue.edu/extmedia/gwc/gwc-1.pdf&ved=2ahUKEwjntvehlMvcAhUHL3wKHQzrC8gQFjAKegQIBRAB&usg=AOvVaw2w_PHJYyKJDD1JQvnZQtS_ (redirects to a PDF)
I feel like I had another point to make, but I'll be damned if I can remember what it was. This is getting kind of long anyway.
I hope that offers a bit of clarity.
Cheers.
