That question is for you to answer, but in my opinion it's not worth it throwing away a long friendship over politics. You are allowed to have disagreements. Additionally if all his non-politically right friends / associates throw him away if might only push him even further into right politics.
The thing is, that your dashcam usually stays on public property / public spaces, while a bodycam could easily film someone on private property. Therefore OP would likely have limitations on where they are allowed to film, similarly to an IRL streamer.
Source?