And if you actually read the Wikipedia article you linked:

The work of Elinor Ostrom, who received the Nobel Prize in Economics is seen by some economists as having refuted Hardin's claims.[1] Hardin's views on over-population have been criticised as simplistic[2] and racist. [3]

...

Hardin's work is criticised as historically inaccurate in failing to account for the demographic transition,[191] and for failing to distinguish between common property and open access resources.[192][193] Environmentalist Derrick Jensen claims the tragedy of the commons is used as propaganda for private ownership.[194][195] He says it has been used by the political right wing to hasten the final enclosure of the "common resources" of third world and indigenous people worldwide, as a part of the Washington Consensus.[196]

...

Other criticisms have focused on Hardin's racist and eugenicist views, claiming that his arguments are directed towards forcible population control, particularly for people of color.[210][211]

The "tragedy of the commons" is one of those things that's very Intuitive, but doesn't actually hold up to much scrutiny.