no, there is plenty of food and room. People in the 70s said the same sh**t then as you are now, and here we are 40 years later with WAY more people and WAY fewer people starving (never mind that we have MORE oil reserves now than then, never mind that there are more trees now than then). Weird right? The air was horrible, rivers were catching on fire, the number of active wars was crazy, terrorism was a several times worse...of course we should stop whomever is dumping plastic into the ocean (it's not from straws in the US or Europe), of course we should do what we can to clean up the messes we've made, but this "oh, it's so much worse now than it's ever been, whoa is us" is bull sh**t.
Depends how you want to live.