@katan
Even if there is not a way al pi derech haTeva to actively shut it down without risking Jewish lives, that means only that it needs to be dealt with as such, but not at all that it needs to be actively supported, CH”V.
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Just the opposite .
It should be supported – if said yidden will be supported , their lives and their property will be supported .
Definitely.
Lo Ta’amod Al dam Re’aha is a Lav De’oraytah.
You are mehuyav to give away ALL your property not to be over a Lav Min HaTorah.
.