Lets just make the weapon dmg all the same. Knives will do the same dmg and a great axe, we don't want anyone feeling left out for their decisions..
Genuine unhinged take. Letting a character with 8 INT choose to multi-class Wizard is bad for the game but not because it removes anything from Wizard as a class. It's just letting players make bad choices, and that is hardly ever a good idea. A Wizard with 8 Intelligence is useless. A Fighter with a 2d6+2 Dagger is not.
The stat requirements are mostly there to protect players from making catastrophically useless characters. Removing them would not be a benefit to anyone. Now in terms of weapon proficiencies you can gain those without terrible multiclassing if you are hell bent on having a sword wielding wizard if you so wish. For example the Gythyanki come with +1 INT racial trait which lends itself well to Wizards whose abilities scale with intelligence but they also come with light and medium armor proficiency as well as weapon proficiencies for shortswords, longswords, and greatswords so you can be a well armored wizard wielding some decent weapons without giving up too much.
In addition it appears that BG3 also plays by at least some of the rules introduced by Tasha's Cauldron of Everything and it allows you to remove the racial points of every race and spend them as you wish. So take Githyanki for example...they normally have +1 INT and +2 STR...but let's say you want to play as a Githyanki Warlock and those stats don't do anything for Warlocks. Well you can remove those 3 points and spend them where you wish...in the case of a Warlock adding +2 CHA and +1 WIS would be much better. You can do that!
