In Blade Runner 2049, the is a group of "freedom fighter" replicants who hid the (thought to be impossible) offspring of a replicant with the hope that they would — when the time was right — become a sort of symbol and spark a rebellion against their human oppressors.
However, Wallace Corp. is searching for the replicant in question to create a new generation of replicants capable of reproducing.
Why wouldn't the freedom fighters welcome such a development? Surely this new generation would give them hope of multipying to match or exceed humans in number, giving them much better odds in a rebellion?