I disagree with you that there are few corollaries to America today and the London of 1984. I think there is a LOT to the thought crimes- more than we even know. A few years ago, there was a huge scandal because the IRS went after people who belonged to the Tea Party movement and audited them aggressively because they are people who commit "thought crimes", thinking that government is too big and that taxes should be severely limited.
Also, people who own small businesses are being prosecuted for "thought crimes"- sued for not baking a wedding cake for a homosexual couple, or pharmacies being sued for not selling the morning after pill or other birth control pills that are actually abortifascients - these things can be termed "thought crimes" because the people are thinking differently from what the culture at large has accepted as good behavior. Right now, it is just hurting people's pocket books- they are not being thrown in jail, but they are being punished for thinking differently.
I don't think feminists are individualistic at all, they seem to have a collective mind set- mostly focused on abortion.
Well I suppose that could be seen as thoughtcrimes against the American Law and system. American Law is very prized on individualism. "My body my choice", "the customer is always right", "no taxes", etc. The difference between that and 1984 though is the people denying service or products aren't really committing thoughtcrimes because they are holding to their conscience, they are not guilty in their minds of doing such things. In 1984 Winston's thoughtcrimes, he knows are thoughtcrimes, and so because he knows he is guilty he has to try to hide his conscience.
Yea I kinda see what you mean with the feminists being collectivist insofar that they are a group, but at the same time the whole premise of their various protests are very individualistic, even if we relegate their movement down to just abortion. Abortion should be an individual's choice in their view rather than the choice of the collective society, which is essentially what American Law all ready says.