Why do you not want to eradicate hunger, inequality, mental health problems, and general suffering?

I ask such an absurd question in response to your equally absurd question because of course everyone wants to eradicate these issues! But it is not possible to fully eliminate being monetarily poor (by somehow making everyone wealthy), or hunger (by overproducing food and creating distribution), etc.... and so a realization that tradeoffs must be made given our finite resources will better frame our collective decisions as a society.

Obviously we can and maybe should, but at what costs in order to do so? Are there better infectious diseases to invest in and focus on instead?