I think you're just going to have to accept that most people have a lower bar for what constitutes culpability and complicity than you do. I recall that back when the sensitive topic of the day was Gianni Moscon racially abusing his fellow professionals, the level of benefit of the doubt you were willing to apply was that it would have taken him having "constantly been complaining how dark-skinned people shouldn't be in sport" (
your words) before you would be willing to label him guilty of racism. I'd say that the vast majority would draw the line a lot lower than that - but it does tally up with your stance here, which appears to imply that no protest is valid unless the targets of the protest are
actively participating in the action being protested.
Likewise here, I think it is fairly clear that the protesters here do not perceive, say, Matthew Riccitello or Jan Hirt to be
actively participating in the action that they are protesting against, but they are visibly appearing in public wearing the badge and slogan of the entity that they are protesting against. To put it in less political terms, if you wore, say, a Glasgow Celtic shirt into a bar in a predominantly Rangers-supporting part of the city, people in that bar will give you grief. They won't need to believe that you actually play for or be employed by Celtic to do so - by repping those colours publicly you become an emblem of that opposition, and a proxy for their dislike for that team.