No, adults should not be throwing tantrums like children when Trump (or someone else) says or does something they don't like. But it's really the only way liberals can keep people in engaged. They rely on emotion, not facts and substance.
Being outraged about something is not throwing a tantrum.
Tell us, oh wise one, how do you keep folks engaged? Is it by being the most prolific poster in the Politics and Political Issues Board on Getbig? BTW, there is no evidence that Donald Trump follows the forum "Getbig".