I'll tell you, with all sincere honesty that as I've gotten older, my views on FLOSS haven't reduced, but they've changed somewhat as I think about other needs.
I gave the example of people using Facebook to see pictures of their family. Telling a grandmother who wants to se photos of her grandkid that she shouldn't because Google is able to excerpt control over her is not likely to win her over.
I used online dating apps, mostly OKCupid, to meet women in order to date. OKCupid's Javascript is non-Free, and they held my dating data.
I made a considered choice to trade in that for the possibility of meeting someone who I'd want to date.
We all make these kinds of choices and in any kind of negotiation, whether it's in business, with friends, or even in a relationship is to try to put yourself in the head of the other person and figure out what they're thinking, needing, what their priorities are and what their values are.