No it isn't. I am an excellent parent. I know this because I dedicated my life to becoming one. Despite having ADHD myself I was a very organised mum and ensured my DC always had clean clothes, shoes that fitted, mufti on the right day, correct kits for school and scout trips etc. I always checked their school bags, helped with homework, changed their beds, cleaned and decorated their rooms. They had freshly cooked meals every day, got read stories and sung songs every night. I played with them, hugged them, played silly games with them, had a lot of giggles with them, listened to them and comforted them when they struggled, acceptesd them for who they were and never tried to mould them, but encouraged them to work hard at school and fitness, so they could make the most of who they were. I took them out to build dens and climb trees, to fairs and shows, museums and castles etc. They had regular playdates and sleepovers, and as they became teens we went to gigs and festivals, comedy shows, long haul holidays and had pizza film nights at home. I thought about how to be a good mum practically every minute of every day because I was so bloody scared my ADHD and depression would make me unintentionally neglectful. It took all my focus and I had little energy for anything else.
But DS2 has ADHD.
I'm sure it's hereditary. My mum had ADHD. She was chaotic and neglectful of us physically (never had clean clothes or shoes that fitted or gloves and coats in winter etc. We were always grubby, late for school, unaware of what we should bring to lessons and day trips and even crucial exams!) But she was also very loving, made loads of efforts to do things for us, like baking birthday cakes, making clothes and toys, helping with our revision, taking us out for the day, singing to us. I aimed to be more organised than her and to provide better than she did, but I also wanted to be like her in terms of her creativity and playfulness.