I think parent is alluding to the fact that "part of the family" is a framing that often serves the interests of the employer. No matter how close you feel to t

I think parent is alluding to the fact that "part of the family" is a framing that often serves the interests of the employer. No matter how close you feel to the people managing you, chances are they will not hesitate to lay you off for financial/profitabilty reasons. This is in contrast to how an actual family (whether biological or "found") works where support and belonging is to some extent unconditional.