There is actually no helping you, you’re actually beyond helping.
For the record this is not a “agree to disagree”. You are wrong. You don’t know what you’re talking about. You don’t have any clue what you’re talking about. You are 100% objectively wrong.
By your 9000 IQ thinking Disc is easier to play than Holy because Disc does more healing.
You can make the argument that playing a Frost Mage to the same level of DPS as a BM Hunter is harder, in the sense that a 60th percentile BM probably beats a 95th percentile Frost Mage.
But then you’ve got to factor in that you’ve only gotta beat like 300 other people to get the 95th percentile as a Frost Mage on M N’zoth, or have to beat less than 50 for specs like MM, SV, and Sub but you gotta beat almost 6800 people to be 95th percentile as Fire.
And somehow make the argument that playing Frost to a 95th percentile is equal to complexity to playing Fire to the same degree (it’s not).
But it’s not a particularly good one. Not when most classes are pretty straightforward. It isn’t like say, Overwatch, where you have to be far stronger in mechanics to even contribute on a hero like Widowmaker, whereas characters like Junkrat and Moira can be played reasonably with a trackpad.