Then sell them in the UK, where the FCC is entirely irrelevant.
We treat RF like your lot treat Mexican fireworks.
Our border control confiscates Mexican fireworks.
And illegally entering Mexican immigrants too, yes. In practice, neither seems particularly effective.
This would mean throwing away a giant market for what are generally pretty niche use cases. Very cool use cases, sure. But not worth giving all those sales up in favor of gray-market importers.