The incoming Q1 earning reports will show if these actions are mainstream enough to make a visible dent in companies quarterly earnings. For now, the already reported Tesla sales numbers in Europe are substantially down, but Tesla is the strongest target of the boycott. It will be interesting to see if consumer companies such as Coca Cola, Nike, Amazon also report a substantial drop in EU sales.
Tesla in particular are so easily targeted for "secondary picketing": people making it embarrasing to own a Tesla or just straight up targeting them for vandalism.