Be comfortable in your control over your own body and don't engage with those who would destroy you because you don't submit to their collective will.
I would like to think the average attitude here is closer to one of intellectual curiosity than blind labeling.
The trouble is that "anti-vax" sentiment is impossible to distinguish from "vaccine hesitancy" when the only reasons put forward seem to be vague mistrust in the tech / government.
Rarely do these conversations lead to real discussions about actual quantified risks, which makes it easy to dismiss hesitancy as garden variety anti-vax sentiment - the kind that is based on verifiable lies and has been around for decades.
I'd argue that instead of predicting inevitable binary thinking and dismissals, it'd be more useful to focus on the actual substantial claims to back up the position. Anything less moves the conversation nowhere.