Joseph you are creatign aStrawman
Idont think anybody is suggesting that it is ok for him to remianmarried.
The question is should we try to be mekarev him anyway.
ie Should we get an intermarried Jew to wear tefillin, keep Kosher, keep shabbos even if he will remain intermarried.
what to do about his intermarriage, that can be dealt whith later. It is rare for AbaalTeshuva to be mekabel the entire torah at once.
Gaon
“BTW – I recall many disagreeing with his p’sak like the Minchas Yiztchok, R SZ Aurbach…”
That is true for any pesak you find on any subject. Id id not mean to imply that it is universaly held.
“Bottom line – it all depends in the circumstances, there is no blanket p’sak of how and what we say “tekanos Hashavin”.
Of course it depends, again Im sorry if I implied there isany blanket statment for suchcomplicatedissues.
ALthoughgenerally for “takanas Hashavim”we are meikel. For example, meikarhadin most poskim say it is assur to invite irreligous JEws for meal on Shabbos, yet in practice it is allowed, and done