That's a good point. The only question is will they (the writers, showrunners, or executives) pass the low bar of having a Belmont being antislavery?

It's one thing to have side characters being political. It's another to make the main character take a stand on a crime against humanity.

It's less a critique of just this show, but I hate the tendency of making side characters take clear stands on issues while the main protagonists never say where they stand on the subject.

It's a cowardly concession that feels like the pandering of a quick same sex kiss. It's there enough to say they did it, but not enough to impact how someone looks at the main character. The main character is ambiguous enough that their status of hero is the only indicator they're a good person. They save the world, but you can decide for yourself what their opinions are on minorities or whatever.

That way, people on the left who want to like the show can have something and chuds can say "_____ was great, but they had to add in the sjw character to say something woke."

I hope Castlevania subverts the trend so the chuds have to reckon with their hero having different better views than them.