A lot of people are confusing an act of protest and an act of illiberalism.
To take the argument at its best, "lock her up" is dangerous rhetoric when adopted by a political party, and to see it then normalized across the political spectrum is twice as scary.
But in context, it's not being normalized. The crowd was confronting Trump *with his own abnormal rhetoric* as an act of protest and humiliation. They're not trying to lock him up, they're trying to publicly embarrass him — and correctly so.
Unlike with the RNC "lock her up" chants, there is neither illiberal intention nor result here. Just the opposite: a powerful political figure, for once, is confronted by public protest he has to see and hear, forcing him to listen to his own rhetoric echoed back.
