"Perhaps people are missing that the point of Copenhagenize is to, well, 'copenhagen-ise'."
"And so if we wear the "right" clothes and ride the "right" bikes then the government will pour all its money into turning the whole of the UK into Copenhagen(may angels sing its name unto God)? I don't think so."
But you're attacking a straw man since the message of the Mainstream Cycling Movement (TM) to a prospective cyclist would be that *any* of their clothes are OK. Also, saying that you can ride a short distance to work on any bike (even the one in the back of your shed) is exactly the opposite of saying only the "right" sort of bike can be ridden.
In fact, I'm not sure whether you aren't suckering me with a deliciously ironic reply, since what Copenhagenize is arguing is also against buying into the "right" sort of clothes, although "right" is subject to which side of the argument the speaker is on!?
"The 'problem' from their perspective is a self-perpetuating exclusiveness that comes from being an out-group compounded twice over by having out-group clothes."
"The "problem" from their perspective is that people in the UK do not have cycle friendly junctions, cleared and gritted cycle paths and segregated cycle lanes and so dress and ride accordingly and that this is somehow their fault."
I'm not sure that people do "dress accordingly" though. There's nothing about junction design, gritted paths etc. that denotes a particular mode of dress. I would say that the narrow and specific type of people who participate in cycling define the type of clothes that are worn, and seen to be worn, by "British cyclists".
There's a chicken-and-egg issue here. Cyclists are marginalised, both numerically and institutionally - an out-group. There is no solution to this except the "mainstreaming" of cycling, which requires one of two things - ordinary people becoming more like current cyclists, or cyclists becoming more like ordinary people.
Of course, not everybody wants to be "mainstreamed". I'm not sure I want cycling to be as popular here as it is in Europe, it would make it slow to get around, the segregated paths especially, I'd always have to be watching out for meandering pedestrians, and so on.
It's also inherently understood that to suggest something should change is to criticise it, i.e. there is no way to advocate anything to do with cycling (except the status quo) that doesn't involve criticising people who will not like what they hear.