Take it up with Gen. Flynn. Catholic and Protestant churches throughout history have had paintings and statues and stained glass windows with pictures in them.
If this seems wrong to you, that is right in line with Islamic beliefs.
I’ve never been in a Protestant church with a statue — at least not a fundamental one. As a preacher’s kid, I grew up in Protestant churches so have seen hundreds. Some will have a cross in front (not a crucifix), but others even frown on a simple cross, as it’s “graven”.
As for stained glass, we have pictures but no images of Christ, “saints”, etc.