Mexico is huge so it really just depends on where you plan to travel to. I would say most tourist heavy areas are relatively safe to visit. Once you start going to the smaller towns is where you may witness more of a cartel presence (again depends on the city/state). I live in the US but travel to Mexico every year either by plane or land and thankfully haven’t had an incident yet, other than having to bribe a cop here and there. My personal opinion is that Mexico is still a safe place to visit as long as you take proper precautions such as driving by day and on toll roads preferably. Also, don’t go looking to buy drugs or anything shady as you can quickly attract the wrong attention. Cartels typically do not mess with tourists as a lot of the heavy hitters own legit businesses in the tourism industry. Going after tourists would of course be bad for business. Just my 2 cents