So, here's the test of the utility of your argument. If, as you suggest, there are too many folks around already, prove it the ethical way ~ remove yourself.
After that happens I'll look around and see if I feel more crowded or less crowded!
I am not suggesting removing anyone, I am suggesting that people be allowed/encouraged? to reproduce responsibly and in proportion to ability to care for your own children rather than ask the state to do so. I chose to produce 2 children, one of whom is now serving in Afghanistan. Perhaps you think it would serve me right if he gets killed there??
I applaud you!