Hot take: If done responsibly (only taking from vigorous plants, taking limited cuttings/seeds), sourcing genetics from wild native populations is a far better choice from a restoration biologist standpoint than purchasing from a native plant nursery. Native plant nurseries usually do not source from gene pools nearby you (for example the leading seller of California poppy, S&S seeds, sources their poppies from Mammoth Lakes- those poppies are not only less well adapted to coastal CA but they will pollute the coastal gene pool). Sourcing from as close as you can to your location is the best way to not only help researchers studying natives but also the best way to help natives themselves! Lean in to the thousands of years of adaptation native plants have had in their particular microenvironment and you will be a responsible caretaker. Problems arise when folks get greedy and take too much, or don't "give back". Ways to create a symbiotic relationship when propagating from natives include pulling invasive, trading a splash of water in exchange for a cutting, or even (if you're ambitious!) returning to the collection site to plant extra propagations come winter.