When you find a Jewish person who is genuinely a good person, you might have doubts about "It's the Jews." I have gone around and around in my brain with this conundrum. But here's the thing, these people are born into this. It's like being born into a Mafia Family. Think about the kids in the HBO series The Sopranos. They didn't know at first that they were born into a Mafia Family but as they got older, they figured it out. They figured out the benefits of being in a Mafia Family. Were they supposed to abandon their family just because they were gangsters? No. They stayed in the Family and continued to reap the benefits of being in a Criminal Mafia Family. Does that make them bad people? IDK
What I do know, is that I have ancestors who were born into a Jewish Family and then abandoned their Jewishness and became Christian. It can be done.