Julie, in your most recent post you kind of beat me to saying what I wanted to say. But I wanted to pose it as a thought experiment. So at the risk of appearing 'me, too,' here goes...
Please pardon the long set-up, I wanted to create a frame that would help divorce our many personal, passionate viewpoints on this divisive topic from the initial question posed by Julie.
We are as gods. We are observers of the following experiment. The outcome, whatever it is, will not directly affect us, so we have no stake in what it is. We have no need to defend an ideology or a dogma, and indeed, we don't want to. We only want the experiment to reveal what IS, not what we are.
Our tasks are to predict the outcome of the experiment, knowing the conditions under which it's conducted. In predicting the outcome, we are forming hypotheses that the experiment tests for a true/false outcome. True -- our hypothesis is validated; false -- our hypothesis is invalid, and we need to find a hypothesis that explains the results. There is a third outcome, NULL, neither true nor false, and this indicates that the hypothesis is flawed and should be re-thought.
Formulating a question for an experiment to answer is probably the toughest part, BTW.
THE EXPERIMENT:
The experiment is designed to answer the question: Given that society currently appears to harbor misconceptions about transgenders, and those misconceptions enable and perpetuate some level of society-condoned transphobia, and given that escaping the negative effects of the misconceptions and phobia is an impetus for those transgender women who are well-able to 'pass' to live their trans-girl lives as 'stealth' as possible, does this 'removal' of the well-able-to-pass trans-girl from general visibility of society perpetuate the above-mentioned misconceptions and transphobia by not providing society examples of trans-women who do not bare discernible stigmata of a male puberty, and are often mistaken for genetic women?
CONDITIONS (INPUTS):
Constants -- The current percentage of the population who is transgendered, who are undergoing transition, and who have completed transition. Also, the ratio within the transitioning and transitioned subgroups of fully-passable to 'clockable' trans-girls. Also, the 'baseline' metrics for society's current level of misconception of and phobia towards the trans community. The corollary would be that the higher the level of misconception, the lower the level of acceptance in society. One of the components of the level of transphobe-ness could be the percentage of assaults/murder on trans-girls whose trans-ness is perceived/discovered.
Variables -- The percentage of trans-girls in both groups who are fully 'out' as to their MtF status. Let's define 'fully out' as being in an activist role. I don't expect someone to buy a pack of gum or order a taco and tell the cashier or clerk at each stop, "I'm a trans-woman," but at critical junctures they chose being out. For example, being casually out to memberships in groups such as churches or the Rotarians and similar civic groups. Also, outing oneself in order to combat prejudice towards those whose natural, inherent gender or sexual orientation is at variance with the 90+% of the population in general whose gender and sexual orientations fit the 'standard' straight-heterosexual axis. Another 'outreach' or 'activist' activity would be appearing on television advocating issues of concern to the trans community.
EXPERIMENT METHODOLOGY:
Take the above inputs and run 11 trials in which the variable input (the percentage of fully passable women who are out,) varies in steps of 10%, from 0% to 100%
Collect new metrics on societal acceptance at intervals of 1 year, 5, 10 and 25 years. (Bear with me here! this is a thought experiment

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Now, with the inputs and methodology above, what do you predict the outcome will be for each of the eleven trials? How, and how much will the metrics of acceptance change for each of the trials. How will the data compare for the 0%, 50% and 100% trials?
I look forward to your predictions as to the outcomes. Please, do NOT put yourself into the experiment. If you are currently 'stealth' or currently 'unpassable' YOU are not in this experiment. Also, do not make predictions designed to defend a particular position or ideology, only predict what you feel is likely to happen given the inputs.
Humbly submitted;
Karen