The American "public" land grab greatly predates McCarthy, although she's brought the corruption to new heights.
The One World socialists won't be happy until we're all forced into urban tenements and the concept of private property rights is eliminated.
Agenda 21 marches on. Anyone who calls it by its real name is usually branded a conspiracy nut. People obstinately refuse to believe what's happening right in front of them.
This phase of the problem begins with the SCOTUS decision in Rapanos v United States in 2006.
Up until McCarthy came along EPA was trying to handle the problem by issuing "guidance papers" to deal with the chaos created by SCOTUS. The decision to rewrite the rule came in 2014, which was after McCarthy came along.