You're not an asshole at all. In fact when i saw infinity wars, i did not think that thanos was wrong. I was discussing his intention with my friends and it is a situation human beings will face very soon.

Thanks to automation, millions of jobs have been wiped out and 50% of the existing workforce will be jobless in a few years. Not everyone can be customer support either. Medical advancement is not stopping. The strain on resources is increasing.

What will happen most likely is that future generations will face more competition to earn, they will stop having kids as it will be unaffordable and desperate times will lead to increase in suicide rates. Medicines will be out of reach for many. Diseases will evolve to kill a part of the human race and hopefully no one will have to take the decision thanos did.

The world is overpopulated even now. No one wants to talk about it because we can still survive.