Why is it that republicans can insult liberals all day but the moment liberals give them a taste of their own medicine, republicans lose their minds?

notice how republicans have been insulting Joe Biden and refusing to give him the respect of the office of the president they demanded we give trump despite trump being a despicable POLITICIAN and calling biden mentally ill and a traitor. Yet Biden calls them fascists and a threat to democracy, they lose their shit and demand an apology and even threaten to kill him, also death threats are not free speech and can lead to you being arrested for threatening to kill the REAL PRESIDENT,

Why is it that republicans can insult liberals all day but the moment liberals give them a taste of their own medicine, republicans lose their minds?
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