I live on 7 acres of mostly heavily wooded land
Well, the activists target SUVs in the middle of Hamburg. That's not really a comparable situation. I agree it would suck if you visit a big city and get targeted there, but I would hope the activists can decide between a polished up city-only SUV and an actual working-vehicle and act accordingly.
Sources for (3):
For VISA applications, https://travel.state.gov/content/dam/visas/Enhanced%20Vetting/CA%20-%20FAQs%20on%20Social%20Media%20Collection%20-%206-4-2019%20(v.2).pdf should apply.
What if applicants participate in multiple online platforms? Are they being asked to list all of their handles, or only one?
Applicants must provide all identifiers used for all listed platforms.
I reached that document via https://www.ustraveldocs.com/de/de-gen-faq.asp#qlistgen21 ("Apply for a U.S. Visa in Germany") and didn't find any hint for exemptions for German citizens or E U citizens, so I assume it applies. (But I might still be wrong.)