Which by definition means it wasn't the only reason, which proves kozikow's comment to be untrue.
It's a commonly cited gripe. I suspect it often comes from people entirely unfamiliar with EU processes, but who don't like EU membership or the idea of EU membership for other reasons and since it's a commonly cited gripe (and also doesn't mention immigrants, and has a pro-democratic connotation) they use it themselves.
It would be strange that no one in this thread has ever heard a Brexiteer cite bureaucracy and corruption, but I fear it's an urge to insist that the only reason that anybody voted for Brexit was racism to delegitimatize leaver votes or even the possibility of debate between two good people on the subject. I fear that attitude will not convert many previous leavers to new remainers in any future people's vote.
I suggest not bothering with arguments against racism, which racists will have heard before and dismissed, looking at left-wing arguments against EU membership from the 70s, and responding to those.
There are lots of contexts in which we can say we would like to see more data. However, when someone is making a point which is a fairly standard one in the Brexit debates we don't need "references". Nor would referring to an article that said the same thing as OP somehow validate the point. There is a place for asking for references, but on a basic comment like this there is not.
Based on the other comments, it seems people are more upset about the perspective behind this idea rather than its truthfulness. I don't agree with the perspective that leaving the EU is a good thing but it is uncontrovertible that a significant portion of the population in the UK agrees with OP's statement.
So I'm not sure I'd agree the point is "a fairly standard one". Some will say it was about representation, some will say it was about sovereignty, some will say it was about immigration. Some will even say it was simply a protest against the status quo.
Anyone who states "this is what we voted for" has decided that their reason for voting yes was the primary reason for 17m to vote yes, with no evidence at all.
I don't think there was a bus about bureaucracy.
(It also says "Free business from EU red tape - Margot Parker MEP".)
https://fullfact.org/europe/350-million-week-boris-johnson-s...
If it's fairly standard I should be able to find at least one survey mentioning it online, right? I tried before sending that comment and couldn't find a single one pointing out corruption and bureaucracy as main reasons. (Or even at all) Ironically I find only articles about corruption in Vote Leave campaign. If it's that standard opinion, please post any source which ranks it against other reasons.