As said plastic is used virtually everywhere. I don't think it's possible to eradicate it.
The way I see it is that we all have to act a wee bit more responsibly. Re use containers, take our own shopping bags ( charging for plastic bags was a fantastic idea) and so on.
I do wish that manufacturers would reduce the amount of packaging though.
Very surprised that you watched the BBC documentary though
I would have thought that you would be put off by its inherent lefty, green agenda bias