Think hard about the psychology there. You want to burn it because he told you not to. You want to burn it to declare your autonomy from his authority. But burning it is a symbol of hate of our country, not Trump. Perhaps he knows this, and perhaps that’s exactly how he wants you to act.
IAmGraydon says >But burning it is a symbol of hate of our country<
No. You don't know what the symbol means to any other person than you. And there is no absolute meaning of a symbol.
You are one person in a world of billions, each with their own symbols and interpretations.
Burning a flag could be done for an infinite number of reasons. It could be a constructive ritual that ensures "purification", or "cleansing" or even "betterment" as in a metaphor with wrought iron wherein the heat and pounding shapes and strengthens the metal.
Some Chinese burn goods (and paper models of goods) to send them to their dead ancestors.