I thought I learned this lesson back in the early 2000-2002 time period, but my activity on Facebook this year would suggest that I have to re-learn it. This from Gary Vee:
“I don’t try to convert anyone. No one! None of the content, none of the things I do -- books, keynotes, videos, T-shirts -- are done in the hope they will convert a single person. I speak only to the already converted, and you should do the same...If you sell fax machines, and your market doesn’t believe in fax machines, don’t try to convince them to buy fax machines! Go find the people who have bought into the fax machine idea and sell to them."
You can't convert people. They have to buy into the idea themselves.