it’s not a logistics nightmare, we used to do that until plastic gave us the idea of single use containers, many restaurants still do it with larger 1L bottles

also, while yes glass does have a really high melting point, most plastics never get recycled and instead get burnt, releasing a lot of toxic chemicals in the air (and even if they weren’t, you can only recycle some types of plastics, and even if you did, new objects can be made only by some percentage of recycled plastic, and never 100%)