Since #privacy is hard to achieve. One solution I propose is having an alter ego online.
Create another email under another name and use a different username on a browser that leaves no trace on your machine through a #vpn.
They might be able to #dox you but not your alter ego if you manipulate what you share. Lie online all the time and they won't be able to detect the truth from it. Provide miss information. It is the only way.
Think if gus from breaking bad having 2 lives.