First, in 1933, at the height of the Great Depression, the U.S. Government, under the Gold Confiscation Act, confiscated gold money from its citizens and replaced it with paper Federal Reserve Notes. It became illegal for individuals to own gold, except for small quantities that coin collectors and dental practitioners could hold. This alone eliminated the public’s capacity to hold government inflation of the money supply in check; they could no longer redeem inflated paper money for gold.
Abolishing the gold standard is not "equivalent" to "seizing of all gold". Both things just happened concurrently:
http://www.greatdepressiononline.com/gold-and-the-great-depr...
First, in 1933, at the height of the Great Depression, the U.S. Government, under the Gold Confiscation Act, confiscated gold money from its citizens and replaced it with paper Federal Reserve Notes. It became illegal for individuals to own gold, except for small quantities that coin collectors and dental practitioners could hold. This alone eliminated the public’s capacity to hold government inflation of the money supply in check; they could no longer redeem inflated paper money for gold.