Wow, you should calm down.
Anyway, your evaluation of casters is way off. Cantrip damage increases with level, so they can pump out consistent damage without burning spells. Spell slots allow for damage spikes, crowd control, and utility, all of which is very useful if you know what you are doing. There are cantrips to create illumination so dark vision isn’t that big a deal, and concentration isn’t nearly as prohibitive as you make it out to be.
