it might seem at first glance they are not worthy of their subscribers but i would recommend to not feel sorry for yourself and really take a proper look at their channels and see what you can learn from. there are a hundred small ways to improve your channel and get people to subscribe. yes it's good to focus on your own channel but we can learn a lot from our 'competitors' too

there might be a few small things they are doing well such as their end screens or the way they reply to comments or the tags they use, who knows!