Now. Slavery is a sin to Christian doctrine now. For most of your religion's history, it was generally fine with slavery.
I've reached the point where I'm willing to give people a pass on doctrinal inconsistency in the nane of kindness.
OTOH, doctrinal inconsistency in the name of cruelty - as you've been doing throughout this thread - well, that may be the greatest sin of all.
I would say that the ideas peddled by many Christian churches - e.g. that marriage is essentially nothing more than a breeding arrangement, and that persecuting LGBTQ people is acceptable or even mandatory - is the thing that's actually "anti-life."
re Christians and slavery. RCC doctrines usually have little to do with Christian
doctrine - it's more like window dressing. Some Protestants are no better.
When I say 'Christian doctrine' I ought to say 'New Testament' instead, sadly.
New Testament doctrine is not about 'persecuting' anyone. You have no right.
Disbelieving in something is different. And one thing I personally disbelieve in
is the sexualization of our society. These days children (half from broken homes)
are taught issues about gender, alternate, queer, gay etc and will spend their
lives seeing millions of porn images, watching mainstream porn shows and
addressing an endless conga of new sexual issues. Meanwhile in Asia their
own kids get an education twice as good as Western kids, and take our jobs.
Wish them well.