I think it's a valid point, and especially so when you are talking about convincing people to take it. But I think it also important to remember the huge advances that we have made in healthcare in the past century. Thanks to this, you are far less likely to die from diseases now than in the past.
I couldn't find specific influenza data, but as influenza can lead to respiratory infection and pneumonia I think the following illustrates that point. I am making some assumptions here and it's not proof - but I don't think that there are many on here who would argue against the idea that access to improved healthcare reduces deaths dramatically.
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So let's look at our current situation with COVID-19. The majority of people who have contracted it an fallen ill have or are not dying. But a problem occurs when the number of people who require medical attention surpasses what is available to a community. People are denied access and we go back to 19th century mortality rates.
Now, there will be people who will say that; "I'm willing to take that risk because I'm fit an healthy" But there are (at least) two big problems with that.
One, you may increase community transmission. And you need to remember that there are vulnerable people within the community who do not have the luxury of choosing between vaccination or not. There are some people who are considered to be at a high risk to receive vaccinations (mainly because conducting studies on vunrable people can be impractical and medical professionals WILL err on the side of caution if their is a concern) and people who's immune systems are so compromised that vaccines will not work for.
Secondly, if you do get sick, there is a pandemic in your community and the health system gets compromised then people will lose out. And remember, that most anti vaxxers aren't just advocating for themselves they are actively encouraging others to do the same and so is anyone else who want to spout the nonsense that vaccines are bad for you. There have been many recent pandemics around the world, in developed nations where enough people refused to get vaccines.
Ultimately prevention is better than cure and a S*** Ton better than treatment.
And (because I'm done with the whole discussion)....if you want to be part of a community and take advantage of everything it offers (childcare, schools, sporting matches and entertainment) then you should act in the interest of the whole community. If you can't do that then you should F*** right off!!!