Quote: He had reasons for Cyclops and Nathan. He doesn't just go after kids,and to my knowledge, he has never done anything to any other kids. This sounds like a real step down.
There are always reasons, and they're not specific to Scott and Nathan. Those are just his special kids.
Then explain the orphanage? The orphanage had been established years, perhaps decades, before Scott. He took all of those kids to be part of his experiments.
Not just that, but we've seen his laboratories full of imprisoned children before.
And heck, even back in Victorian England he wasn't above capturing kids.
I never read the issues that you're talking about, but they don't sound like good writing for the character. He'll perform experiments on people, sure, but he doesn't go after kids. I remember an issue where he said that even he still had some standards or decency. I think that it was in the 90's series of X-Men (The Claremont/Lee seeies.), back when the Legacy Virus was a big deal.