1. Patent trolls have no political clout. Zero chance of police arresting someone on their behalf (let alone them calling police to request this). Patents are a civil matter, not criminal.
2. I have not heard of the US interrogating any suspected Ukraine-invasion fighters.
3. Muslim friends could bring you more scrutiny. But they'd have to be pretty dirty to warrant that much attention on you. I haven't heard one case of someone being taken to a secret prison just to be convinced to turn spy. If you're taken to a supposed "secret prison", you're probably there to stay.