They say,“Religion is a dirty word; Christians aren’t supposed to have religion but relationship.”

No.

It’s been the “in thing” the last several years to despise the word religion, and define it differently than the Bible does, instead, defining it as man’s way of getting to God, as judgmentalism and formality. But James spoke of true religion as taking care of widows and orphans, and remaining unpolluted by the world (James 1:27). How can that be bad? Jesus cared very much about widows and orphans, about holiness—how can you have a relationship with a person and not care about what they care about? Religion isn’t bad—the problem is with false religion.

Religion that God our Father accepts as pure and faultless is this: to look after orphans and widows in their distress and to keep oneself from being polluted by the world.

James 1:27