Be sure to read the rule before you leave

It's literally an anti-abortion, forced birth perspective to think potential lives have value and that value can outweigh actually existing lives, if you believe that you have to be for forcing women and girls to give birth against their wills. It's just a further fantasized and obscured version of "well sure you're only 15 years old and you didn't consent to being pregnant but you know the kid you have could have a kid, who could have 10 kids of which one cures cancer so you have to have the kid and even if you don't have a descendant who cures cancer the good of those descendants existing rather than not outweighs your desire to not be pregnant and give birth and raise a kid".

Warning: Nerd-rant digression, loosely related

I not too long ago watched Star Trek: Deep Space Nine. Massive mistake, people on hexbear have very poor media literacy or an odd sense of humor suggesting that show is especially anti-capitalist or left (way worse than TNG which is actually FALGSC).

Anyways, one episode that just enraged me more than the others the crew ended up in a time-warp situation and basically met the descendants of themselves after they got stuck and crashed and there were about 500 of them after a couple centuries. They decided to abandon their existing families, their sworn duties, their lives in the present to preserve this possible time-line and these possible people (not to mention Star Fleet state property and all the expertise they had which they owed to their fellows of their time in Star Fleet as those who had taken an oath) on a whim after getting all emotional at seeing great grand-kids and blah, blah.

Anyways this episode did not critically engage with this thought experiment at all, it just basically assumed this was the right thing to do, that it was obvious and didn't present the counter-argument at all. Honestly I think the crew should have been stuck there and the series ended with that and everyone calling them shitheads (because they were) but they were saved not by someone presenting this obvious argument but by a jealous, selfish act of one person who sabotaged the plans of the others and ensured they escaped because of their own emotions (love). Star Fleet literally has non-interference rules on time-travel and avoiding it is definitely one of them so them choosing to try and preserve the travel to the past and stranding happening is definitely a massive court-martial and dismissal worthy offense (in fact they do this constantly in DS:9, ten times as often as Jim Kirk and for way worse reasons with really thin excuses and yet escape anything ever happening because they just lie and omit it from reports which is hilariously awful)