Yes, but not the way you do. I worry more about people's freedoms and liberties. I think a truly free market unshackles the true wonder of human innovation and creativity that is needed to address and accommodate the growing pains you mentioned in the OP.
I also think we haven't had a free market in a couple hundred years because people who fret about controlling overpopulation, etc think that the magical federal government or the UN has the power/moral/ethical fiber to eliminate their problems. If you empower those entities to handle those problems and expect them to act accordingly, you lose all personal stake and responsibility in your own destiny. People learn and behave best when they are free and have the power over their own effects and interests.
You might say I worry about the earth's future freedom or lack thereof.