https://screenrant.com/things-about-its ... ed-poorly/
7 Things About It’s A Wonderful Life That Have Aged Poorly
George Is Kind Of Mean
Another example is when he refuses to give Mary her clothes back. Sure this could be seen as harmless flirting, but Mary was left hiding in a bush without clothes while George just laughed it all away. At the end of the day George is a very kind and selfless man down on his luck, but those around him didn't deserve the way he treated them.
Mr. Potter Isn't Evil
Mr. Potter is certainly an unlikable, despicable man. The movie portrays him as a heartless, cold man. While this may be the case, he may not be inherently evil. Mr. Potter cares only for himself and his money, but at the end of the day, he is helping the town regardless of his ulterior motives. Bedford Falls may not want his help, but the fact is he is helping.
Of course, calling the cops on George just to get him out of the picture is an awful thing to do, but he did technically break the law. Mr. Potter is a bad man, and seeing him lose his grip on George was the happy kind of trope fans love to see, but in the end, he was just a businessman, nothing more.
George Is The Sole Breadwinner
Just because something is normal in the '40s, doesn't make it right now. George Bailey and his family were never extremely financially well-off, and yet George was the only one with a steady income. Mary did nothing to help support the family, she just stayed home and cooked, cleaned, and raised the kids.