

Without FPTP, the district result doesn’t matter at all, since it is the total number of votes that matter, not a designated winner of a district.
That depends entirely on what FPTP is replaced with. Any system with local representitives can be gerrymandered to reduce the representation of certain groups, with the exception of MMP where you can still gerrymander but it doesn’t affect representation. That includes ranked choice, approval voting, etc. That’s not to say these aren’t better, of course with better local representation the effectiveness of gerrymandering is reduced, but it is not eliminated. The only way to eliminate gerrymandering is with a proportional system.






Yes that’s true, systems like FPTP and IRV (as used in australia) are single-winner and thus require a local representation system, but you could use ranked-choice in a proportional system.