It doesn’t because the UK has FPtP yet doesn’t have a hard two party system. Scotland, Wales and Northern Ireland have nationalist movements that want out of t

It doesn’t because the UK has FPtP yet doesn’t have a hard two party system. Scotland, Wales and Northern Ireland have nationalist movements that want out of the UK-state independence movements exist in the contemporary US too, but they are very fringe But even England has not just Labor and the Tories, but also the Lib Dems, Reform, the Greens, Restore So England proves you can have multiple parties with real power, with FPtP, even in the absence of regional-nationalist movements