In addition to small bunches of UK right wing nationalists donning their yellow vests and verbally assaulting MP's and RMT leafleters etc the left wing have been having a go as well as in the recent 'Peoples Assembly' demo (complete with a Class War 'Fuck Brexit' banner). Some comment here:
www.leftcom.org/en/articles/2019-01-10/peoples-assembly-election-carnival-leftist-yellow-vests-show-their-true-colours