Obesity is a problem, so we shouldn't combat anorexia, because it's a smaller problem? Should we abandon flu vaccines because covid is a worse virus? We've go

Obesity is a problem, so we shouldn't combat anorexia, because it's a smaller problem? Should we abandon flu vaccines because covid is a worse virus? We've got how many billion people on this earth? I think we can afford to diversify our efforts in helping people.