I don't want governments to support curing of diseases such as smallpox
Why do you want the diseases to stick around?
I'm not too bothered by diseases and I don't like that people don't believe they can be healed.
It would be irresponsible for governments to let infectious diseases to go unchecked. If they can help populations be healthy by eradicating certain diseases, that is a good thing. It is wrong to believe people should just get sick because you don't think the illnesses are a big deal.
I still think it's wrong, even with how many people die yearly.
It seems like you have not seen the effects of these diseases up close. The government should do what they can to prevent these diseases and you should support it.