

If it is good and open, engineering is engineering. Good engineering came out of Meta before, that all of us use daily, like the zstd compression algorithm.
Save the moral outrage for all the other shady shit Meta imposes on humanity, god knows there is a intercontinental cargo ship load of it to choose from.

If you do not want to support Meta, cancel your WhatsApp, Instagram and Facebook accounts. Stop being their product.
Participation in free/open source software is something that is encouraged from all, even if they are shady corporations like Meta, Google, Nvidia or Microsoft.