i disagree, but at 47, i’ve learned not to rule out anything.
Youngster ... there is no statistical way the Trump as a 3rd party candidate can win - Hillary starts with 47% or so of the electorate - do you imaging Trump’s 3rd party putative 15% of the electorate is somehow going to win?
Don’t be so blind as not to count the past - Clinton, Bush, Perot Presidential race during the 1992 Presidential election. Absent Perot, Bush I would have won, and most of the US mil secrets would still be secret and China would not have accurate ICBMs, quiet subs, advanced radar, or the klystron switch for thermonuclear weapons. Third party runs are just spoilers for one party against another and never win.
If you support Trump and he goes 3rd party - run - you’ve been had.