Philosopher; it’s like I said above – a jewish life is worth the wasted resources. It also happens that when such mistakes occur, anyone who became frum would want a giur, and should indeed get one if they are sincere.
As for the “worthiness” of kiruv targets, there need not be any. Morasha kehilas yaakov; their great grandparents cried biterer treren for them to come back, and many have b”h. I brisk I learned lf the background of many, many choshuve bochurim who grew up with nothing. Do most become frum? No. Do the ones who become frum always become bnei Torah? Again no. But are they ruining klal yisroel? Absolutely not! More harm is done by the likes of Avi Weiss who have a rabbinic position to exploit, or by the social media women who spread treif among bnos yisroel. More harm is done by the people in our own “unzerer” who facilitate and enable disgusting things, by the MO world which incubates apikorsus and znus, the list goes on…the dreadlock wearing hitchiker who enjoys a shabbos seudah and is inching towards observance isn’t hurting nearly as many, because he’s an “oisvarf”.
“What are we letting into our community” – being steeped in gen z garbage does not remove the yiddishe neshoma and our obligation to save them as much as possible. The ones who are not up to par anyways don’t want to assimilate into the charedi world, and the MO world is just as “veit” as they are