"The lines cross and omg! catastrophe happens" is the sophisticated wrapper around the bullshit argument "nobody goes there any more because it is too popular".
If you think the world has enough Bitcoin users as things stand today, you have a point. If you think that use of Bitcoin growing by a factor of more than several dozen percent is desirable, then your point is ridiculous.
I don't think either of those things, you have just presented a false dichotomy, albeit shoddily constructed, that advances the debate by zero percent.
I was just pointing out the totally false and misleading argumentation of this whole "the lines cross omg! catastrophe" bullshit that your best friend Mike Hearn started. You know that guy that did famously well out of bitcoin, made him wealthy, got him out of a failed marriage and landed a cushy gig advising mega-banks and stabbed bitcoiners in the back without a thought of gratitude.