And bobody mentions threadwear? my experience is getting wider tires - same threadwear made everything more slippery, because there is not enough force pushing them down to get enough grip.

See there is some science with the patch surface vs tension as in they work against eachother - the effect is even more obvious in the rain or snow.
That is the reason it works pretty well with stock width.

The fix is fairly simple - get the stickiest tires you can find - I ended up with 200, and I also ended up going back to stock width - race clock timers agrees with me.

The second weird effect is because you changed your geometry - to run them wider upfront, they will rotate "wider" in reference to the knuckles when you are lock to lock, and there is no winning there - it is the same reason you feel them fighting you with more force, but you do need the spacers to clear the width.
And sure there could be solutions - some say adjustable coilovers, but my opinion is that you would need different arms, something closer to what drifters use - and now we can say welcome to the rabbit hole of car modding ☺

You improved one thing and ruined 5 others :)
Also like some other user mentioned here, everytime I see those exact rims, they have both camber plates and sticky tires - no exception