Why was Jesse James shunned?

Jesse James was shunned by many due to his violent criminal activities, including bank and train robberies, which were seen as a threat to Law and Order. His involvement in the Civil War on the Confederate side and subsequent actions as an outlaw fostered a reputation of lawlessness. Additionally, his actions often resulted in collateral damage and loss of innocent lives, further alienating him from mainstream society. Despite some viewing him as a folk hero, many others considered him a dangerous criminal unworthy of admiration.