It's completely fair and normal to be disturbed, I agree on you with that, however:

a human being with no power

That's not true at all.

It's irresponsible to trivialize Kirk's actions as "saying words", or claim they have no power. Words hold power, and not just from political authority either. Kirk played a major, leading role in promoting and stoking stochastic terrorism and fomenting the political atmosphere that has turned the USA into what it is now. One particular case, a reddit user recalled how Kirk's propaganda machine radicalized their vulnerable brother into attempting mass murder with a vehicle (unfortunately I can't find it, I think the comment or post was deleted) and another has said they're being assaulted by family. I understand not comparing to formal politicians (despite the obvious links to them) but I think it's absolutely fair to compare Kirk to a cult leader, a known-murderous cult grooming listeners into demonizing black peoples, gay people, trans people, gun control rhetoric and a myriad of other scapegoats.