There is no point to doing this. It's a waste of cycles. People believe what they want to believe, and will only change their mind when they want to.
Your own point, that the ones that bug you are the "willfully blind" ones... do you expect to be able to change someone's mind when they are very intentional about not doing so?
What has worked well for me in dealing with this is to just recognize that we're all at different stages of life, and maybe someday these "willfully blind" will gain perspective and see the broader truth.
The best thing is not to try to force them to see reason, but to demonstrate reason yourself and recognize that at any given point only some people are ready to see reason.
Others may be ready in the future, but they simply aren't now.