In the past, during periods of contagion, humans have been quick to jump on bandwagons which called for the spreaders of contagion to be isolated.
I am unsure why you feel that people have changed significantly.
There's some of the sentiment you describe atm, sure.
But it only exists until Trumpco's new operative statement achieves saturation.
Trumpco, Trumpco customers, et al HAD been pushing the idea that COVID = flu.
This operative statement led to people doing things they would not have done if they had had a genuine fear of contagion.
Once this operative statement is replaced with the new operative statement that
Trump saved America from DEADLY COVID with the wonderful Trump vaccine!
More people may exhibit more behaviors more inline with historical examples.
Or not.
We'll see.