That is not what I've seen from the crowd except during speeches. I, too, naturally tend to believe the worst about these people but there's definitely a sense of Trump supporter community there.
There is a community there, but for many the process of joining this new community has involved the destruction of their existing links to family and local society. QAnon is the most extreme example of this kind of cultish separation among Trumpists.
I think there is a push and a pull going on. Many people feel like outsiders or are otherwise unfulfilled with their communities, making new associations more attractive