If you ever find yourself thinking, "I like these ideas in principle, but the way people discuss them on social media..." pause! that is a good prompt to remember that social media is intentionally designed to promote simplistic, inflammatory content. It is a terrible place to learn.
It doesn't matter what the subject is, whether it's horses, knitting, soap making, or Star Wars, the same sort of inflammatory, judgmental, fractious discourse will arise on social media because that's the way social media is made.
The idea that we can save the planet by buying stuff (even if that stuff is plants) is what I call "buyproductism." I made that word up, so there's no need to google it for more information. Buyproductism is when you see Buying Product as your primary way of impacting the world.
This is why my IRL work revolves around giving away free plants and community building so there is a larger network of plant giving-away, and why I teach others to collect their own seeds and transplant their own seedlings.
Plants are free, it's in their nature.
The point of growing native plants is not just to have native plants for yourself and some local bugs to enjoy. It is also VERY important to pot up the volunteers and give them away as gifts, and plant or give away the seeds, or scatter them in some neglected place.
Community building! MORE PLANTS!