“The least of these” is referring to persecuted Christians, not the poor.
I’m assuming (after a quick Google search) she’s referring to Matthew 25:40…
And the King shall answer and say unto them, Verily I say unto you, Inasmuch as ye have done it unto one of the least of these my brethren, ye have done it unto me.
OK, there’s apparently some debate about whether “the least of these” is referring to persecuted followers of Jesus (who I don’t think would have called themselves “Christians” yet!) or just the poor or disavantaged in general.
I dunno, I certainly don’t claim to be a Bible scholar of any sort. But I’ve had a few times where I was staying at various homeless shelters for a while, and one was ran by a non-denominational Christian church. Even though I’ve been a staunch atheist since I was a teenager, some 30 years ago, those people were most excellent. They believed in helping the disavantadged, whether they were Christians or not. I guess I’m just really saying, more Christians should be like that, or just more humans in general.