Yes!
It is disrespectful only if you mispronounce it Eksmas. In the abbreviation Xmas (pronounced "Christmas"), the X- is not the Roman letter x. It is the Greek letter chi, which is long-established as a proper abbreviation for Christ.
The guy misprounced the girl's name. It means that the guy spelled the name wrong.
For Family Feud: Cappucino Latte Espresso Mocha
It is very disrespectful, as disrespectful as spitting in a person's face or calling them an obscene name.
I mispronounce the word "entrepreneur" as "entreprenoor" every time I try to say it.
Back talk, disobeying commands, being disrespectful to others, purposely going against their teachings, hitting, and other various activities.
In general conversation with a friend yes it is rude to correct a word they have mispronounced. If the person is doing public speaking then they should take criticism for any word or name of person they mispronounce.
Mispronounce
pronounce
No
Yes, There is no law against that.
Being Disrespectful in a relationship is: Name Calling Cheating Not Being Truthful Talking To An EX and Hiding It Keeping Secrets from Each Other Belittling You