Earlier quoted context omitted.
Or they should not do business in them. To me this means block access. If you don't then they're supposed to block access to you anyway so who is strong arming who?
As I said in my first comment: if it makes doing business in the UK unpalatable then they are of course free to halt their operations. I was specifically responding to the suggestion above that they should do so as a bargaining move to force the government's hand.
Part of fulfilling that mission is opposing laws that restrict free knowledge and open access, so why should they not use their huge presence as a bargaining tool? Doing so directly aligns with their purpose.