This movie is like a mind map , many ideas but not all of them belong in the story.
To summarize it starts start with a middle to lower class man(Paul) trying to make ends meet and live a life of luxury with his wife by shrinking themselves and ends in the the story being about the world coming too an end and the main character falling in love with his neighbors amputated housekeeper. Everything in between that is just fluff that doesn't carry an substance.
Downsizing had a lot of potential but completely missed the mark, with
weak character development and a very disconnected story line ,all in all the movie felt forced and like the writers were in a rush. Genuinely not worth the 2 hour watch.