Well, no one is forcing you to be here! But it’s nice that the guy took the time to attend a protest, though he clearly has more important matters to attend to. This might also be his way of protesting – he’s attending this protest though he doesn’t have time for it, since the cause is important enough.
None of us really have time to attend protests, and we would all rather be doing something else, but protests are important since they are part of democracy and our right for free speech. So at least he took the time to attend to protest, even if he chose to declare that it is a major inconvenience for him.