When did the Catholic church stop that?
In fact, the US last that I heard does not punish for being outside the Catholic Church at all.
Because the US is based on Protestantism instead of Catholicism. People are not punished in the US for being outside the Catholic church because this is the US and not the Catholic church. Based on RCC history, it the Catholic church had its way, we would be.
You might want to read up on the persecution and killings done by the Protestant colonial rulers against the Baptists, Quakers and Catholics, with the exception of Rhode Island and Maryland. The Protestant colonies established state religions and killed anyone who seriously opposed them. Your history is approximately as accurate as your theology, as it seems.
Your lack of a proper education is showing. Simply wanting something to be true or having it told to you by the Rev. Billy-Bob Rolex doesn't make it so.
The US Constitution is based upon a defense against Protestantism instead of Catholicism. When you understand the fear of Calvinism and the "Popes of Boston" the other colonies had you will understand their demand for the Bill of Rights as a precondition to ratification of the Constitution. Start with the Federalist Paper #46 and work your way outward.
You cannot be that ignorant. The Church pretty much started by stopping the Jewish practice of stoning.
People are not punished in the US for being outside the Catholic church
.. and so you as one outside of it have nothing to fear from the Inquisition.