The obstacles are political, not regulatory. Most developed countries have similar regulations. Many are also capable of changing the regulations when they don

The obstacles are political, not regulatory. Most developed countries have similar regulations. Many are also capable of changing the regulations when they don't work or the outcomes are undesirable. The US usually can't do that outside an acute crisis. The politics are highly polarized, and the system makes it unlikely that there is a stable coalition controlling every relevant branch of the government.