10 million people are just as powerless as one, if all they do is buy a different phone or whatever. But 10 million people voting for the politicians that will impose sanctions on these companies is going to make a difference. People are willing to buy canvas bags and electric cars, but taking the time to find a party that's willing to hold companies accountable and voting for them is just too much work. Don't "vote with your wallet" - it doesn't work. Vote with your VOTE!
[1] Carbon Majors Report, CDP, 2017