I can't really agree with that.
I don't think there is a single person who will "shout you down" as you say. I won't be attending the march away from the ground as I cannot pull myself away from the football - plus I have a ST and as such I would be losing out if I boycotted, not Lowe.
Going off track a bit here, so back to the point - if I was going through the turnstiles and saw people marching out/away, I would not feel angry and have a go at you all. I, and I suspect many others, would applaud you for being able to put the club before your own lust for football.