There will be no winning some people over and that’s okay, no one is forcing you to buy balloons, but it is possible to buy and supply them as ethically as possible as with any purchase!
My point more is that balloons get a very disproportionately bad rep but there’s more to it than meets the eye, and if it’s something you DO want you can find the best way to do it. Let’s be real, Is your morning coffee flown in from South America essential? Is your smartphone manufactured the other side of the world essential? How long will your reusable plastic tuppaware take to break down after your gone? I’m not saying balloons are totally eco, but I often think it’s very rich when people complain about them whilst simultaneously wearing plastic soled Nike runners, iPhone in one hand, take out coffee in the other! (In my experience at work, obviously I’ve got no idea what you own or the state of your tuppaware cupboard 😂)
Fwiw Not all cars are essential either, I live in London and see a lot of ‘unnecessary’ driving (esp with electric cars now with expanded ulez but I digress…) - Having lived here for a decade with no car I often wonder why so many drive here!