Instead of emotionally reducing it to "don't kill grandma" you could join a reasonable discourse on the topic and look at other factors like...
The at-risk can get vaccinated - healthy youth don't get hospitalized - there are antibody and drug therapeutics available - youth don't need to risk novel vaccine adverse affects (they are documented - they are more prevalent in young than old) - you still spread it equally significantly vaccinated or not - the vaccine does not give robust coverage against new strains - natural immunity gives far more robust coverage against new strains than the vaccine (almost suggesting exposure for the low-risk is a better societal outcome).
Hand waving "all youth must get vaccinated" is not a rational course of action.
Resisting this surge of authoritarianism is going to take more than just the unvaccinated standing up for each other. We need the vaccinated to say no and to refuse to comply with any orders for certificates or to pay fines.
You know, “resist” – wasn’t that the recent call-to-arms that got the orange fascist out of office?
