There are too many people on the planet as it is. Earth Overshoot Day, the day by which we've collectively used up whatever the Earth can generate in a year, is moving earlier in the year. In 2021, it was July 29th.
From there on out, we're depleting the Earth's reserves - some of which can never come back.
This is, in my view, immoral. That's how I view things without giving back.
Your comments seem to try to twist the arguments into some sort of Thanos-snap, as if certain currently living people do not have a right to live. That is a strawman, no one is arguing that.