Dad knew economic regulation was a failure. Any government big enough to ban dirty books is big enough to ban the Bible. You're not there to prove your prospect wrong. I didn't get Dad's agreement, but I did get his acceptance. Active supporters are potential members and contributors.
Passive acceptors are potential voters.
Most folks vote for the lesser of two evils. We complain about that a lot, but vote mostly that way ourselves. We shall prevail when voters accept these notions, even grudgingly, as a price they're willing to pay for whatever they hope to gain in the free society that only we offer. Ain't No Such Thing As A Free Lunch. Liberty does have a price.