This is completely unrelated, but now is a good time to get into shooting paintball guns at pieces of circular glass about 2 cm in diameter.

Employers in the US often include “morality clauses” that mean they can fire you because they deem you to be harming the reputation of the company due to behavior outside of work.

More importantly than “the rules”, though, US employers can fire you for basically any reason they want and then just lie about it. Nobody is going to force them to be truthful. Not even if they are union busting. The Biden-Harris NLRB, which the president dragged his feet staffing and staffed with wet blankets, has even upheld the Trump NLRB Electrolux decision - and the vast majority of people never get to the point of launching a lawsuit that would be relevant, as it costs tens of thousands of dollars.

If you want power in the workplace you need to organize a union competently and develop capacity real leverage (direct action, community support, naming and shaming).

That is a good idea just so that you don’t have to think about any potential privacy issues. Your email could be {firstword}{secondword}{4 numbers} and so long as the words and numbers are randomly generated, you can avoid accidentally including personal references or biases.

Your username does not need to be high-entropy, though. It will be semi-public. So it’s not about strength against dictionary attack or similar, it is just about leaving the selection process up to a random process that isn’t witnessed by a third party. You can write scripts that will generate these kinds of things using Python and the faker library.

Traditionally, people like myself get killed due to bad opsec.