Why do anti-vaxxers stick with their refusal to save themselves and the lives of others?    A lot has been written about the various reasons people are refusing to get the Covid-19 vaccine. Unaware of the twenty years that mRNA techniques have been in the works, some feel the vaccines have been developed “too soon.” Others think the shots are part of a “human experiment,” and they are not swayed by the expansive clinical trials nor by the fact that 3.6 billion doses have been administered around the world so far with minimal or…