The "America, love it or leave it" tactic? It's intellectually dishonest and shortcuts any kind of debate or thoughtful discussion. Or is this more of the "you haven't left your wife beating husband so you must like it" tactic? That's also philosophically bereft and avoids anything substantive.
Suffice it to say, constructive criticism is vital for democratic improvement.
> If your belief is the United States is so bad that it justifies murder, you should leave.
That's a weird conclusion. For me, it's rather "The USA has its flaws (for me - healthcare and higher education financing above all) so we as a society should focus on fixing these problems". Killing people or leaving the country are not solutions, they are are an equivalent of short Twitter replies on a nuanced subject.
Isn’t this how it is supposed to work in America? People own guns to fight tyranny. The gunman carried out his own judgment, but that’s the whole point. And there is reasonable belief that the CEO is responsible for a lot of suffering and expected life lost.
Suffice it to say, constructive criticism is vital for democratic improvement.