I follow a non league team as well. Everton my main love but as I lived in SE London I have watched Welling United for years.
Same here, I follow York City, as my missus is a Yorkie and I fell in love with lower league footy, as a result of going to watch York over the years.
I also go and watch Sale Sharks with my eldest lad as he plays rugby and that got me into watching both union and league.
I`ve been to watch Marine a few times and really enjoyed watching them too.
I think it`s an age thing tbh, as you get older you seem to come to a realisation, that there`s more to life than the Premier League.