If I understand correctly from your past posts, and please correct me if I'm wrong, your chief complaint isn't the family. It's Decimation, and how Wanda was written leading up to and after it.
This thread is called House of M Appreciation, but in reality it's about the family. House of M is just what they're called and what people know them most for because a) it's what Marvel has used most, and b) it's a setting where they're most shown as mutant royalty. They pre-date House of M as a family.
Most people don't know that Wanda was presented as "human" in the family in the regular House of M universe. Of course we know she really wasn't, but when people think of the House of M broad concept, they're not thinking of "human" Wanda. Or about Decimation. They're thinking about an idealistic concept where all the characters would be treated well, including (perhaps especially) Wanda. And "treated well" here doesn't mean they're all perfect angels with no faults or conflicts, it would just mean any faults or conflicts fit who they are and serve everyone involved.
Any character misused as a plot device doesn't help. You get a lot better results for story and for reader interest if they're all treated respectfully.
Maybe House of M isn't the right template to think from. Maybe it's Genosha. WatXM was based off Genosha with no House of M factoring in, after all.