There are only so many resources to go around. If you are competing to deny people food and water to raise the market rates, then yes, people will die, just hopefully not enough people to cut into your profits too much. That is what capitalism is all about.
Don't forget competition from the supply side.
Ultimately, supply and demand will reach equilibrium in an ideal system.
What we have today is welfare state which let people breed without giving much thought. Personal responsibility isn't really in the mind of the people.
Expecting free shelter, food, cloth and education for their children is what get the US and Europe into the mess we have today.
This kind of practice is being done by local, both legal and illegal immigrant. Which make me kind of wonder how much longer the system will last.