EU lights rule.
Our lights are now wired in with the ignition, and they are now pushing for this on cars too.
As to looking intimidating in wishing to pass through stationary or slow moving traffic, we are allowed by law to do this. It is known as "filtering".
Would you have us add to the congestion and to the problem when we are part of the solution in getting away from it? DAG (Biker) Huyton