He doesn't need fear "any" consequences for his opposition to Trump? You don't think he could be fired, demoted, denied promotion, etc.. for expressing anti-Trump views in hearing of MAGA bosses?
You accuse him of insulting the President with his opposition. Is the same for true for MAGAs who recall "Obummer's" administration? Will it be true, should Biden prevail, of the inevitable "Hiden Biden" rants we'll read from Trump aficionados?
That's just US politics.