You can handle a little disrespect. If you respond at all, you must do it in love and with kindness.

"For this finds favor, if for the sake of conscience towards God a person bears up under sorrows when suffering unjustly. For what credit is there if, when you sin and are harshly treated, you endure it with patience? But if when you do what is right and suffer for it you patiently endure it, this finds favor with God (1st Peter 2:19-20)."

Knowing when to stop arguing with fear-driven, willfully ignorant people is wisdom.