A lot of woody shrubs and trees are propagated by grafting, not rooting. Fruit trees are done that way because the root stock is more vigorous and produces a better tree, or you can graft it onto a dwarfing root stock to limit the size. Most fruit trees are patented as well. Grafting isn't that difficult to get started with, but you do have to do some research as far as maintaining mother blocks and root stocks. There are several diseases that can be passed along through grafting seemingly healthy but diseased plant matter, including mosaic viruses. That can weaken the plants and make a lot of your effort for naught in a climate challenged environment.
If you are planning this as a hobby, that's one thing. If you are planning this as a commercial venture, you're in for a steep and expensive learning curve if you aren't already adept at growing for market. It's a penny margin business, and those pennies can be easily wiped out by weather events even with some hoop houses as protection.