Is Mexico really that dangerous?

Heres a good tip or when going to mexico. NEVER EVER drive around in a fancy new looking car because cartels will follow you and try to take it from you at all costs. Also, when going thru mexico city wrap a rubber band around your wallet and put it in your front poket because there are a LOT of pick pockets. Dont wear any jewelry or fancy clothing as this would make you an easy target. In addition, NEVER ever bash the cartels while in mexico cause you never know who u are talking to as they could possibly be a cartel and kill u for insulting them which has hapenned to many people. I would avoid mexico for now because its just way too dangerous with it being considered the #1 country in holding people hostage and then killing them even tho u paid the ransom!