> I assume it is a commentary on Brexit.

The Brexit vote was a decade ago and though many mourn the outcome, it’s a bit late to be erecting artwork about it. References to being blinded by a flag now are probably about the particular far-right organizing of the last year or so that employs the English and UK flags in a very particular way. [0]

[0] https://en.wikipedia.org/wiki/Operation_Raise_the_Colours