That it's good when Christians and non-Christians recognize common ground, because as Christians we are commanded to exist here in this world and live good lives in our communities. We build bridges, not throw rocks. And that what Scripture talks about when it speaks of the hostility of the world is the power structures of systemic evil which oppress, injure, and promote death, decay, injustice, and the things God very explicitly says He despises--because we serve and worship a God who genuinely cares about His creation. He genuinely wants to see human beings thrive.
The point of Christianity is not get people to sign on a dotted line so that they don't go to hell, and this world doesn't actually matter at all. The point of Christianity is that there is a God who is covenantly faithful to His good creation, and in spite of the hell we've created here and in spite of the hell that exists because of the devil, because of the evil that exists--He actually cares and wants the poor to be cared for, the hungry to be fed, for widows and orphans taken care of, and that the kingdom is both this-worldly and next-worldly.
Jesus didn't teach us to pray, "Your kingdom come later, Your will be done in heaven as it is in heaven" but "Your kingdom come, Your will be done on earth as it is in heaven".
That the preaching of the Gospel is not "Hey, join my religion so you can go to heaven after you die" but literally EVERYTHING the Gospel is actually about as written throughout the pages of Sacred Scripture. We cannot divorce eternal life from this life; we cannot divorce the Christian hope of the Age to Come from the kind of life we are called to live right now. If there is going to be a Day of Judgment, if God is going to make all things new, and Jesus rising from the dead is the evidence of this fact, then hey--I should live like these things are true. And that means people matter, that means my community matters, that means what happens to the immigrant, to the poor, to the hungry, to the thirsty, to the people who are neglected, unwanted, and tossed aside--they matter. Because if God's Kingdom is about the last being first, and the least being greatest, if God declares that it is the slave who stands at the top of the pyramid, then that matters.