Stupid question: there are so many public places that provide free wifi without authentication. If you go into one of these places and it is populated enough, and you have MAC randomization on, no smartphone on you, isn’t it good enough? Surely there are CCTV. But if you connect from a changing room or toilets of a busy mall, I don’t see how anyone could trace the connection.
At the very least you need to add a VM into that mix to stop (most of) the fingerprinting. You also need a trusted VPN, all kinds of JS and privacy blockers.
And that's assuming there are no hidden backdoors in your hardware. Which will be used, if you're important enough to track.
But Tor won't protect you against hardware backdoors either. If you disable javascript and open an incognito chrome session, I don't think browser fingerprinting can do much harm. If all you are doing is submitting a form on a whistle blower hotline, I'd expect it to be reasonably secure.
Unique doesn't mean identified (and if you disable javascript browser fingerprinting doesn't really works). In any case Tor doesn't help with that either.
