It’s Protestants. Protestants have essentially turned Christianity into a hippie religion.
To be fair this isn't unfounded, it's just a classic example of something being taken
way too far and without any hinderance at all.
Basically the righteousness the bible preaches was in opposition of an incredibly evil world and incredibly evil acts that most people today can't even fathom. It's asking you to go from a -10 to a +2 on the "kind to the point of almost self destructive" scale, but since our society is at a +5 baseline leftists think it's asking us to go from a +5 to a +10
The hippie thing isn't completely invalid, entire point of Jesus' teachings and the new testamate was to get jews to pull back from the rigid obsession with legalism, and "mechanical" interpretation of god's word. He was trying to remind him that these rules are sacred, but they're a means to an end. An end that the jews of that time had lost sight of, and were now using the rules to embrace the opposite spirit of what god wanted.
Protestantism was essentially that again, but because the catholic church was become too rule obsessed and politically involved, martin Luther was right
at his time but times have changed since then. The catholic church of today isn't what martin Luther criticized.
But the idea leftists spout that Christianity demands you throw away your self preservation instinct and throw away all forms of society is absurd. There is a lot of nuance to the bible, rules, borders, civilization, and even organized war are not outlawed, they're basically described by god as being a necessary thing to deal with our brokenness.
Christianity isn't telling you never to fight back against invaders or evildoers, it's telling you to keep an eye out to make sure you don't become the evildoer yourself, and to sometimes make exceptions if you think doing so would match the spirit of god.
Ie: "in this time, shutting down our border is necessary to protect our christian nation. If violent gangs attack us, we will use violence back. But, we don't need to intentionally target their 6 year old kids... that's too far." Or "don't nuke one city just because a lot of them live there" or "don't torture them out of revenge" etc.
Honestly for anybody who doesn't want to read the Bible, Tolkien's works are a perfect layman's lesson in this and that was by design.