Tbf, having a coalition system doesn't really solve it either. You avoid some of the more egregious edge case results, but overall having a few large parties that agree on nothing eventually has them unable to form a functional government and the ones that manage to do so fall apart before their term is up.

Having a system with political parties at all is the crux of the issue and we can't move forward without addressing that. We are tribal in nature, and if you give people the slightest excuse to form smaller groups they'll fight other groups forever.