I think the hate and negative feelings towards “useless” humans will increase a lot in the future. I doubt we get to the point that something like eugenics or depopulation policies become acceptable.
But why not let a virus like Ebola that mostly affects the poor be around a bit longer… there might be some more “elegant” solutions that do not require the elite to be obviously the bad guys.
While I do not support anything that involves killing groups of people actively or passively at some point in the very near future the problem of population growth has to be addressed in some way.
Maybe with one child policies or children tax for extra children. Right now the current system supports families who have plenty of children. Some people even see this as a career to cash in on more government handouts.
Alea iacta est ("The die has been cast")