Nobody has a 1st Amendment right to make death threats against The POTUS online or anywhere else.
Absolutely. Those who protect the President have to eliminate legitimate threats, and carrying out a loaded firearm the day President Biden visited after his vicious threat, it was suicide by threatening the President and his defenders. If the guy had something against the President, his correct action should have been to contact his Congressman and Senator to address his hostility rather than acting in a way that convinced President Biden's defenders he was serious about doing harm to President Biden.
Aaron Burr hated and engaged a future Presidential hopeful, Alexander Hamilton, in a duel, and though Hamilton did not draw his gun out, Burr killed him without mercy and wound up leaving the country when Hamilton's thousands of friends beleaguered him.
The American people have had 4 Presidents killed by assassins--President Lincoln, April 14, 1965, President McKinley, July 2, 1881, President Garfield, September 6, 1901, and President Kennedy, Nov 23, 1963. We had two Presidents who were wounded by assassins, President Theodore Roosevelt, October 14, 1912, and last, but not least, President Ronald Reagan, March 30, 1981. James Brady, Reagan's Press Secretary took the first bullet that shattered his brain cavity.
Edit: I bless those who guard the American Presidents, Staff members, Ambassadors, Military leaders, Congressmen, Senators,
et al. And if they haven't already, I hope Congress passes a law against people in high office who demand of their minions to stalk and "get in the faces" to push, shove, spit on, hurt in any way or harass their political opponents in the Executive, Legislative, Judicial, Ambassadors at large, with attenders to be tried and punished for such demoralizing any elected fellow American who is doing his or her best to protect and improve the quality of life for Americans, and I'd like to see the lying stopped as well, because it starts out as petty dismay and works its way up to an assassination attempt without merit.
Maxine Waters convinced me that it's a dog-eat-dog world in DC if everybody is told by a politician to take a stab, jab, or jabber at their opponents. It's a disgrace, and people who do such things pull up more hatred for assassination attempts on the lives of politicians they have already pushed egregious lies throught the Democrat-dominated Main Stream Media who cheer every deed of one party and boo the rest as if their conservatism were a pox. It isn't. The present pox is a relentless overspending on pet rock projects and leaving the military without ammunition nor means to get some to protect the other 350,000,000 Americans in this and other countries where they are ambassadors or peace keepers in the Military.