Answer:
as a man who increased the size of government
It was Called the frontier because some or most of the areas in America that where settled by ranchers hadn't been explored or discovered yet.
Gorbachev implemented a ton of radical reforms, which is just one of many things that led to the fall of the Soviet Union. Also, 1991 is the year the Cold War ended.
In America, we rely on public discourse and the open forum of ideas to shut down much of that damaging discourse.