Sure, you can weigh up your value system how you like.
My comment was to address the parent's serious misleading factual idea about immunity, and provide some nuanced background to readers who may find that useful, as the GP's summary is a false but attractively simplistic belief that a lot of people hold about the vaccines. For some people that misunderstanding is causing them to act against their own personal values.
Even if you believe people should act according to their personal values regardless of consequence to others, you probably believe people should be entitled to the correct basic facts if they want them.
I have met too many people who said "I've had the vaccine so I can't get Covid", "I've had the vaccine so I can't give anyone Covid", or "I've had Covid so I can't give anyone Covid", and then walked right up close to other people in confined spaces with other people (service workers etc) unable to leave.
Presumably some of those people believe what they are saying, and would choose based on their own personal values to act differently if they knew they had misunderstood that there are different kinds of vaccine immunity.
Read my comment carefully and you will hopefully see it does not contain value judgements about how people should choose to respond to Covid. (Even if other comments of mine do.)
I agree with you that "Covid is always around now". But that is an over-simplistic, black-and-white summary of something quite nuanced. I'll try to summarise my view in a black and white way (always misleading for a nuanced topic unfortunately):
There is "ok endemic" and "bad endemic". It can still go either way.
Most people want the "ok endemic" version instead of "bad endemic". And they don't know how to get it, so rely on government and other major actors to help chart a path.
To someone who gets that there is a difference, people who say "but it's going to be endemic" as though that settles everything, sound like they are saying "I don't care if it's bad endemic, and you shouldn't care either, stop bleating".