I understand you support Russia and Iran, but Marcus isn’t posting stuff that Iran didn’t say.
They are typical non-western, boisterous, bombastic comments. Think “Mother of All Wars” horsehockey crap that Saddam used to say. Those things are typical of Iran and Russia.
Now, should we take them seriously? I take them as seriously as I would from any loud drunk carrying a gun. They probably aren’t going to shoot the place up—-but there is that chance that they might.