Agree about the product boycotting. Infantile. And I agree societal splits. Some extreme remainers' refusal to accept the result of the referndum has caused it, and the collapse of the Labour Party. These angry Woke people feel they have no chance to influence the way the country is run democratically, so have taken groups of the highly disgruntled.
The common theme running through Antifa/Woke is negativity. No platforming those whose views don't conform with narrow Woke creeds, banning certain literature, forcing people out of their jobs, tearing down statues and throwing them in the harbour and defacing others, screaming racism when there is none, and that all white people have guilt and all black people are victims, conducting a war with police, labelling patriotic people as nationalists, threatening advertisers of certain brands, trying to shame anyone white who steps out of the norm with cultural appropriation.
They're extremists and like the Puritans or accusers in witch trials, they will never consider compromise, so the split you speak of is permanent.