The only thing that bothers me about terms like “trans rights”, “women rights”, … is that there should be no need to prefix “rights” with anything but “human”. And human rights should apply to all humans indiscriminately, obviating the need to label any subset of human rights that shouldn’t exist. In my book, the slice of bread should read:
Humans have human rights. Trans people are humans.
And in a better world every bit of that should be so obvious that it wouldn’t need mentioning at all.
I think you’re missing the compost part. Wood will break down in a compost, yet you can build houses from it. Indoor furniture made from wood will happily serve you for decades. Same with this biodegradable plastic: It’ll have a shelf life of decades or even centuries. When shredded and composted it will break down. This material is likely not a good candidate for the wheel housing on your car, but there’s no reason not to use it, for example, for a car’s interior.