[kevingadd]

"Should google be illegal too?" is a pretty ridiculous extrapolation. Nobody would go that far, a regulation like that doesn't achieve any climate goals and would have massive economic impact. You can probably provide an example that isn't wholly implausible like online banking? Even then, it is possible to draw a line.

[totony]

Who draws that line? Corrupt politicians? Million dollar lobbying? Lines are smokescreen in front of the real problem. They mostly serve to protect the establishment. Ok, no more bitcoin, but what about the heavily subsidized dairy industry, the oil industry, and all the other that pollute heavily?

If a solution requires a "line" or makes no sense at the extreme, it's most likely not a solution.