It's a two way street; sanction on big tech is also the big weapon the EU has against the US if need be and that we kept threatening but never activating.

Which doesn't mean it's easy or won't hurt like hell, but this is a continent that just cut most of the gas cord lines in record times despite massive pain and cost, if it came down to it we would simply because if it comes down to this and we don't then we're done.

Short time it would damage us pretty hard, but long term it would be another net loss for the US.