Greetings from another country and good luck!
The graphic would be better if the extremist for hold of a major power in both cases, otherwise it is better for the top actually: with a small party getting a bit of representation and even a bigger party getting nothing.
Suggestion: extremist big party - majority win - still needs an ally for coalition who will keep the extremist at bay. And an actual working opposition.
Again I wish you the best on your journey, the whole world would benefit im convinced.
I'm from Germany, so we've barely dodged total doomfall a few weeks back thanks to not having winner takes all.
Still a shit show in my opinion but it could be so much worse...