I think it is also important to remember, that without plastics, modern life would not exist.Plastics have been enormously beneficial and will continue to be so.
You/we all need to take personal responsibility - limit our use of plastics to those which are essential and/or recyclable or have already been recycled. Reject the use of single use plastics in shops and in our homes and workplaces. Lobby local councils to get their sorting and recycling systems up to date.Stop talking about it and start doing it. Don't expect others to do it for you.