I've been thinking about these 4 cohorts and perhaps there is a fifth, which I would include myself in. I'd describe this as an extension of #4.
ie those of us who are genuinely torn as to whether to boycott the Watford game or not, but are amenable to other forms of 'protest'. For example, since the boycott announcement, I've refused to buy any drink or food from the outlet. Arguably, that's trivial in the grand scheme of things, but I feel like I'm at least doing something.
At the moment, the commentrary seems to be mostly about attending the game or not, with little discussion of other mechanisms of protest. There's a trick being missed here IMO.