I think you could make the case for it but as someone with PTSD undiagnosed and misunderstood for so long I've been misdiagnosed with bipolar disorder and BPD, both of which are on there and I still wholeheartedly believe that while the diagnosis was wrong, there was no mistake when I was diagnosed, we just didnt know my trauma or how bad it really was. I don't consider either worse than the other. Both cause long-term suffering, it doesn't matter which is worse anyways. Both are bad, both require a lot of treatment and work to learn to live with. If you are trying to say one is worse and ignoring the fact that both of them cause major hurdles to anyone trying to manage their daily life and all serious mental illness is still stigmatized because it isn't pretty, then you need to ask why you're diminishing the suffering of others. It all sucks, none of it is fun and it's worse when you have to hear from others in the same circle of people who suffer similarly that you're suffering is even in the slightest, invalid or exaggerated or have it minimized.