Then I'll just assume that you didn't have a point. You can't really get angry at people for not understanding your side as you did in your original post without giving any reason for people to take your side.
Edit: The main reason to be wary of "fair" brands is that they put extremely huge markups and motivate that by paying a tiny bit more for their parts, making them really profitable. You'd need to show people that it is better to pay for a fairphone and that they actually deliver on their promises, over paying for a cheap phone and donating the difference to a good cause.