I hear you. Same problem with trying to orange pill people, the vast majority just have no time. But at least for Bitcoin it's easy to summarise in a couple of phrases, or a brief elevator pitch. Enough to make people think twice and become curious.

Is there anything like that for flat earth theory?

Because honestly I'm not dismissing this out of hand. I've dipped a few toes into a few essays and videos but all I've heard so far is ignorant nonsense. So far there does not seem to be even one scrap of evidence that really motivates me to keep digging. Is there?