I understand why people are against vaccine passports, but a lot of those most vocal against it are the usual crowd who have been anti-lockdown and anti-mask throughout (and often anti-vaccine). They won't accept vaccine passports but will be the first to complain if and when nightclubs are forced to close again due to the impact of the virus which without vaccines would already be a lot worse with the Delta variant.
They can't always have it both ways.