Certainly many governments including the US, Israel, and Russia have been caught with troll farms, funding radical influencers, etc. I don't think it's far fetched to believe that a state actor is sowing discord within their own people. Just look at COINTELPRO for a good example of the FBI infiltrating and dividing leftist movements.
My main gripe is the jump from skepticism to conspiracy. Through a host of conspiracies, the right has eroded the concept of truth to the point that people only look to right-wing leaders for guidance. This is intentionally done to grab power from those that are more willing to deliberate evidence. I'm worried the left could fall victim to a similar fate if they get too ready to assume conspiracies must be true. If we assume without evidence, we could easily get swept up by a charismatic leader looking to tell us what we want to hear.
If you do want to go the belt-drive and igh route, you'll need to have your frame modified. You'll need to have a belt split added to the seat stay and the rear triangle modified for 135mm dropout spacing (probable you don't have 135mm dropouts). You would need the rear derailleur replaced with a belt tensioner.
Since you use drop-bars, that would limit your options as most IGH shifting uses unique cable-pull. Microshift makes drop-bars brake/shifters for Shimano alfine IGHs. I have this setup on my belt-drive bike. You could also have dedicated brake levers and a bar-end friction shifter which will work with any gear system. That would be a super cool setup but it isn't for everyone. A more clean setup would be something like the Gevanalle which has an indexed shifter built into the brake lever. Keep in mind that your IGH would need to be disc brake compatible unless you want to switch the rear to rim-brake.
None of this is impossible and you would have a super cool whip at the end of it but it's not going to be cheap compared to a frame built for belt-drive from the start.
A less committal option is a chain drive with IGH. You would still need the rear triangle modified to 135mm spacing but you wouldn't need a belt split. As long as your frame is steel, this can probably be bent by a frame builder/mechanic for cheaper than adding a belt split. This could use a single-speed chain which would be much more robust than most higher gear chains. It would also be more tolerant of misalignment since belts really need a good belt-line while chains can absorb a couple mm of misalignment.