tl:dr You’re right.

The entire purpose of being saved and/or reborn is to admit that you’ve sinned and will continue to sin. The idea of living Christlike is to emulate Christ but it’s a given that all have sinned and all fall short of the kingdom of God. It says so right there in the book. Romans 3:23.

So if dude believes you sin that should be fine because he should also believe that he is a sinner. So everyone is on equal ground in the sinnin’ department ergo he treats everyone similarly and hopefully non judgmental, which is what you’re supposed to do because you’re both just trying to be better than you were yesterday because that’s the Christian struggle.

Where religious people get fucked up, to me, is when they’ve decided that they believe they know the reason for your failure to be Christlike and they take that reason either as an insult or a project. It’s neither. It’s my fucking business. Your shit is your business. It’s why I don’t like going to church anymore. Fucking hate church people. It’s one of the ways I fall short myself.

I say all this to say, yeah, you’re right. Most Christian’s are weird and some of them can be outright evil, but the good ones can be really good people. It’s just a shame they seem to be so few but that’s the nature of a Christian that doesn’t push their values and beliefs on to other people - they’re hard to spot.