Well, let’s begin with this, it won’t be heaven on earth, but it certainly wouldn’t be hell on earth either. Liberalism is not in my view, utopian, it is pragmatic and ethical, stemming from a set of principles for governance that tend towards the capacity for any society to thrive.
Britain is class ridden, and economically and socially divided, naturally these groups collude and come into conflict, a Liberal Britain would prevent these special interest groups from overpowering the rights and responsibilities of each and every citizen in law and opportunity. Harnessing to the greater good, the productive capacity of competition through regulation, rather than allowing conflicts to simmer into a demoralising morass through indifference or monopolies.
The different endowments in society suffer if political representation is skewed away from something which reflects the situation on the ground, and that in turn chokes our capacity to thrive, it turns people towards authoritarian solutions. So, a Liberal Britain would have an accessible political system that proportionally represents the will of the people, lives with the compromises that it produces and engenders something more tolerant than we now see. It rests on good will, rather than the desperate and often immoral striving for self assertion.