I compare this question to the way John Madden used to talk about the quarterback position. If you have two, then you really don’t have one.
See, in parts of the world (like mine) where soccer is the main sport, it’s quite normal to have more than one team, because there are many leagues across many different countries.
In Scotland, for instance, a lot of people also support English teams in addition to their home team (for me, it’s Celtic and Liverpool).
Sometimes people will even have more than one team in the same country, because in soccer, league divisions are tiered according to prestige, and so teams in different divisions never play each other (except in occasional cup games or friendlies).
This would be roughly similar to someone from the US having a college football team and an NFL team.
When I started following American football, there was no access to college ball here: the only option was NFL.
Now remember, I’m used to sports (rugby union is much the same) where it’s totally normal to have more than one team.
So when I got into this sport that had - to me - one serious league (NFL Europe sucked!), I naturally wanted to keep up with more than one team.
So I decided I would have one team per conference.
This was the mid-late ‘00s, so naturally the glory-hunter in me gravitated towards the Patriots.
I was well aware of the backlash I would end up incurring for this, so I decided that my NFC team should be one with plenty history, but who maybe hadn’t won anything significant in a while.
Cowboys’ status as “America’s Team” was attractive, and I fell in love with Jimmy’s ‘90s team through old footage online.
Also, these were the early-to-mid Romo days, so I had hopes of a glorious eventual bounce back to a Championship (lol). I was hooked.
So yeah, I have two teams: Pats AFC and ‘Boys NFC. When they play each other, I tend to support the home team.